CVE-2024-41031

一、漏洞信息
漏洞编号：CVE-2024-41031
漏洞归属组件：kernel
漏洞归属的版本：4.19.140,4.19.194,4.19.90,5.10.0,6.1.0,6.1.14,6.1.19,6.1.5,6.1.6,6.1.8,6.4.0,6.6.0
CVSS V2.0分值：
BaseScore：0.0 Low
Vector：CVSS：2.0/
漏洞简述：
In the Linux kernel, the following vulnerability has been resolved:mm/filemap: skip to create PMD-sized page cache if neededOn ARM64, HPAGE_PMD_ORDER is 13 when the base page size is 64KB. ThePMD-sized page cache can t be supported by xarray as the following errormessages indicate.------------[ cut here ]------------WARNING: CPU: 35 PID: 7484 at lib/xarray.c:1025 xas_split_alloc+0xf8/0x128Modules linked in: nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set rfkill nf_tables nfnetlink vfat fat virtio_balloon drm fuse xfs libcrc32c crct10dif_ce ghash_ce sha2_ce sha256_arm64 sha1_ce virtio_net net_failover virtio_console virtio_blk failover dimlib virtio_mmioCPU: 35 PID: 7484 Comm: test Kdump: loaded Tainted: G W 6.10.0-rc5-gavin+ #9Hardware name: QEMU KVM Virtual Machine, BIOS edk2-20240524-1.el9 05/24/2024pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)pc : xas_split_alloc+0xf8/0x128lr : split_huge_page_to_list_to_order+0x1c4/0x720sp : ffff800087a4f6c0x29: ffff800087a4f6c0 x28: ffff800087a4f720 x27: 000000001fffffffx26: 0000000000000c40 x25: 000000000000000d x24: ffff00010625b858x23: ffff800087a4f720 x22: ffffffdfc0780000 x21: 0000000000000000x20: 0000000000000000 x19: ffffffdfc0780000 x18: 000000001ff40000x17: 00000000ffffffff x16: 0000018000000000 x15: 51ec004000000000x14: 0000e00000000000 x13: 0000000000002000 x12: 0000000000000020x11: 51ec000000000000 x10: 51ece1c0ffff8000 x9 : ffffbeb961a44d28x8 : 0000000000000003 x7 : ffffffdfc0456420 x6 : ffff0000e1aa6eb8x5 : 20bf08b4fe778fca x4 : ffffffdfc0456420 x3 : 0000000000000c40x2 : 000000000000000d x1 : 000000000000000c x0 : 0000000000000000Call trace: xas_split_alloc+0xf8/0x128 split_huge_page_to_list_to_order+0x1c4/0x720 truncate_inode_partial_folio+0xdc/0x160 truncate_inode_pages_range+0x1b4/0x4a8 truncate_pagecache_range+0x84/0xa0 xfs_flush_unmap_range+0x70/0x90 [xfs] xfs_file_fallocate+0xfc/0x4d8 [xfs] vfs_fallocate+0x124/0x2e8 ksys_fallocate+0x4c/0xa0 __arm64_sys_fallocate+0x24/0x38 invoke_syscall.constprop.0+0x7c/0xd8 do_el0_svc+0xb4/0xd0 el0_svc+0x44/0x1d8 el0t_64_sync_handler+0x134/0x150 el0t_64_sync+0x17c/0x180Fix it by skipping to allocate PMD-sized page cache when its size islarger than MAX_PAGECACHE_ORDER. For this specific case, we will fall toregular path where the readahead window is determined by BDI s sysfs file(read_ahead_kb).
漏洞公开时间：2024-07-29 23:15:11
漏洞创建时间：2024-07-29 23:49:43
漏洞详情参考链接：
https://nvd.nist.gov/vuln/detail/CVE-2024-41031

更多参考(点击展开)

参考来源	参考链接	来源链接
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/06b5a69c27ec405a3c3f2da8520ff1ee70b94a21
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/1ef650d3b1b2a16473981b447f38705fe9b93972
416baaa9-dc9f-4396-8d5f-8c081fb06d67	https://git.kernel.org/stable/c/3390916aca7af1893ed2ebcdfee1d6fdb65bb058
suse_bugzilla	http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-41031	https://bugzilla.suse.com/show_bug.cgi?id=1228454
suse_bugzilla	https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-41031.mbox	https://bugzilla.suse.com/show_bug.cgi?id=1228454
suse_bugzilla	https://git.kernel.org/stable/c/06b5a69c27ec405a3c3f2da8520ff1ee70b94a21	https://bugzilla.suse.com/show_bug.cgi?id=1228454
suse_bugzilla	https://git.kernel.org/stable/c/1ef650d3b1b2a16473981b447f38705fe9b93972	https://bugzilla.suse.com/show_bug.cgi?id=1228454
suse_bugzilla	https://git.kernel.org/stable/c/3390916aca7af1893ed2ebcdfee1d6fdb65bb058	https://bugzilla.suse.com/show_bug.cgi?id=1228454
suse_bugzilla	https://www.cve.org/CVERecord?id=CVE-2024-41031	https://bugzilla.suse.com/show_bug.cgi?id=1228454
ubuntu	https://www.cve.org/CVERecord?id=CVE-2024-41031	https://ubuntu.com/security/CVE-2024-41031
ubuntu	https://git.kernel.org/linus/3390916aca7af1893ed2ebcdfee1d6fdb65bb058 (6.10)	https://ubuntu.com/security/CVE-2024-41031
ubuntu	https://git.kernel.org/stable/c/06b5a69c27ec405a3c3f2da8520ff1ee70b94a21	https://ubuntu.com/security/CVE-2024-41031
ubuntu	https://git.kernel.org/stable/c/1ef650d3b1b2a16473981b447f38705fe9b93972	https://ubuntu.com/security/CVE-2024-41031
ubuntu	https://git.kernel.org/stable/c/3390916aca7af1893ed2ebcdfee1d6fdb65bb058	https://ubuntu.com/security/CVE-2024-41031
ubuntu	https://nvd.nist.gov/vuln/detail/CVE-2024-41031	https://ubuntu.com/security/CVE-2024-41031
ubuntu	https://launchpad.net/bugs/cve/CVE-2024-41031	https://ubuntu.com/security/CVE-2024-41031
ubuntu	https://security-tracker.debian.org/tracker/CVE-2024-41031	https://ubuntu.com/security/CVE-2024-41031
debian		https://security-tracker.debian.org/tracker/CVE-2024-41031
mageia		http://advisories.mageia.org/MGASA-2024-0278.html

漏洞分析指导链接：
https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
漏洞数据来源:
其它
漏洞补丁信息：

详情(点击展开)

影响的包	修复版本	修复补丁	问题引入补丁	来源
linux		https://git.kernel.org/linus/3390916aca7af1893ed2ebcdfee1d6fdb65bb058	https://git.kernel.org/linus/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2	ubuntu

二、漏洞分析结构反馈
影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:mm/filemap: skip to create PMD-sized page cache if neededOn ARM64, HPAGE_PMD_ORDER is 13 when the base page size is 64KB. ThePMD-sized page cache can_x27;t be supported by xarray as the following errormessages indicate.------------[ cut here ]------------WARNING: CPU: 35 PID: 7484 at lib/xarray.c:1025 xas_split_alloc+0xf8/0x128Modules linked in: nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set rfkill nf_tables nfnetlink vfat fat virtio_balloon drm fuse xfs libcrc32c crct10dif_ce ghash_ce sha2_ce sha256_arm64 sha1_ce virtio_net net_failover virtio_console virtio_blk failover dimlib virtio_mmioCPU: 35 PID: 7484 Comm: test Kdump: loaded Tainted: G W 6.10.0-rc5-gavin+ #9Hardware name: QEMU KVM Virtual Machine, BIOS edk2-20240524-1.el9 05/24/2024pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)pc : xas_split_alloc+0xf8/0x128lr : split_huge_page_to_list_to_order+0x1c4/0x720sp : ffff800087a4f6c0x29: ffff800087a4f6c0 x28: ffff800087a4f720 x27: 000000001fffffffx26: 0000000000000c40 x25: 000000000000000d x24: ffff00010625b858x23: ffff800087a4f720 x22: ffffffdfc0780000 x21: 0000000000000000x20: 0000000000000000 x19: ffffffdfc0780000 x18: 000000001ff40000x17: 00000000ffffffff x16: 0000018000000000 x15: 51ec004000000000x14: 0000e00000000000 x13: 0000000000002000 x12: 0000000000000020x11: 51ec000000000000 x10: 51ece1c0ffff8000 x9 : ffffbeb961a44d28x8 : 0000000000000003 x7 : ffffffdfc0456420 x6 : ffff0000e1aa6eb8x5 : 20bf08b4fe778fca x4 : ffffffdfc0456420 x3 : 0000000000000c40x2 : 000000000000000d x1 : 000000000000000c x0 : 0000000000000000Call trace: xas_split_alloc+0xf8/0x128 split_huge_page_to_list_to_order+0x1c4/0x720 truncate_inode_partial_folio+0xdc/0x160 truncate_inode_pages_range+0x1b4/0x4a8 truncate_pagecache_range+0x84/0xa0 xfs_flush_unmap_range+0x70/0x90 [xfs] xfs_file_fallocate+0xfc/0x4d8 [xfs] vfs_fallocate+0x124/0x2e8 ksys_fallocate+0x4c/0xa0 __arm64_sys_fallocate+0x24/0x38 invoke_syscall.constprop.0+0x7c/0xd8 do_el0_svc+0xb4/0xd0 el0_svc+0x44/0x1d8 el0t_64_sync_handler+0x134/0x150 el0t_64_sync+0x17c/0x180Fix it by skipping to allocate PMD-sized page cache when its size islarger than MAX_PAGECACHE_ORDER. For this specific case, we will fall toregular path where the readahead window is determined by BDI_x27;s sysfs file(read_ahead_kb).
openEuler评分：
3.3
Vector：CVSS：2.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
受影响版本排查(受影响/不受影响)：
1.openEuler-24.03-LTS(6.6.0):受影响
2.openEuler-20.03-LTS-SP4(4.19.90):不受影响
3.openEuler-22.03-LTS-SP1(5.10.0):不受影响
4.openEuler-22.03-LTS-SP3(5.10.0):不受影响
5.openEuler-22.03-LTS-SP4(5.10.0):不受影响
6.master(6.1.0):不受影响
7.openEuler-24.03-LTS-Next(6.6.0):不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP4(4.19.90):否
2.openEuler-22.03-LTS-SP1(5.10.0):否
3.openEuler-22.03-LTS-SP3(5.10.0):否
4.master(6.1.0):否
5.openEuler-24.03-LTS(6.6.0):否
6.openEuler-24.03-LTS-Next(6.6.0):否
7.openEuler-22.03-LTS-SP4(5.10.0):否

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2024-2076

Hi openeuler-ci-bot, welcome to the openEuler Community.
I'm the Bot here serving you. You can find the instructions on how to interact with me at Here.
If you have any questions, please contact the SIG: Kernel, and any of the maintainers.

@yangyingliang ,@jiaoff ,@guohaocs2c ,@hanjun-guo ,@woqidaideshi ,@newbeats ,@zhangyi089 ,@colyli ,@thundertown ,@htforge ,@chiqijun ,@lengchao ,@zhujianwei001 ,@kylin-mayukun ,@wangxiongfeng ,@wkfxxx ,@SuperSix173 ,@jentlestea ,@oskernel0719 ,@gasonchen
issue处理注意事项:
1. 当前issue受影响的分支提交pr时, 须在pr描述中填写当前issue编号进行关联, 否则无法关闭当前issue;
2. 模板内容需要填写完整, 无论是受影响或者不受影响都需要填写完整内容,未引入的分支不需要填写, 否则无法关闭当前issue;
3. 以下为模板中需要填写完整的内容, 请复制到评论区回复, 注: 内容的标题名称(影响性分析说明, openEuler评分, 受影响版本排查(受影响/不受影响), 修复是否涉及abi变化(是/否))不能省略,省略后cve-manager将无法正常解析填写内容.

影响性分析说明:

openEuler评分: (评分和向量)

受影响版本排查(受影响/不受影响):
1.master(6.1.0):
2.openEuler-20.03-LTS-SP4(4.19.90):
3.openEuler-22.03-LTS-SP1(5.10.0):
4.openEuler-22.03-LTS-SP3(5.10.0):
5.openEuler-22.03-LTS-SP4(5.10.0):
6.openEuler-24.03-LTS(6.6.0):
7.openEuler-24.03-LTS-Next(6.6.0):

修复是否涉及abi变化(是/否)：
1.master(6.1.0):
2.openEuler-20.03-LTS-SP4(4.19.90):
3.openEuler-22.03-LTS-SP1(5.10.0):
4.openEuler-22.03-LTS-SP3(5.10.0):
5.openEuler-22.03-LTS-SP4(5.10.0):
6.openEuler-24.03-LTS(6.6.0):
7.openEuler-24.03-LTS-Next(6.6.0):

issue处理具体操作请参考:
https://gitee.com/openeuler/cve-manager/blob/master/cve-vulner-manager/doc/md/manual.md
pr关联issue具体操作请参考:
https://gitee.com/help/articles/4142

参考网址	关联pr	状态	补丁链接
https://nvd.nist.gov/vuln/detail/CVE-2024-41031	None	None	https://git.kernel.org/stable/c/06b5a69c27ec405a3c3f2da8520ff1ee70b94a21 https://git.kernel.org/stable/c/1ef650d3b1b2a16473981b447f38705fe9b93972 https://git.kernel.org/stable/c/3390916aca7af1893ed2ebcdfee1d6fdb65bb058
https://ubuntu.com/security/CVE-2024-41031	None	None	https://discourse.ubuntu.com/c/ubuntu-pro
https://www.opencve.io/cve/CVE-2024-41031	None	None	https://git.kernel.org/stable/c/06b5a69c27ec405a3c3f2da8520ff1ee70b94a21 https://git.kernel.org/stable/c/1ef650d3b1b2a16473981b447f38705fe9b93972 https://git.kernel.org/stable/c/3390916aca7af1893ed2ebcdfee1d6fdb65bb058
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2024-41031
https://security-tracker.debian.org/tracker/CVE-2024-41031

说明：补丁链接仅供初步排查参考，实际可用性请人工再次确认，补丁下载验证可使用CVE补丁工具。
若补丁不准确，烦请在此issue下评论 '/report-patch 参考网址补丁链接1,补丁链接2' 反馈正确信息，便于我们不断优化工具，不胜感激。
如 /report-patch https://security-tracker.debian.org/tracker/CVE-2021-3997 https://github.com/systemd/systemd/commit/5b1cf7a9be37e20133c0208005274ce4a5b5c6a1

CVE-2024-41031

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

mm/filemap: skip to create PMD-sized page cache if needed

On ARM64, HPAGE_PMD_ORDER is 13 when the base page size is 64KB. The
PMD-sized page cache can't be supported by xarray as the following error
messages indicate.

------------[ cut here ]------------
WARNING: CPU: 35 PID: 7484 at lib/xarray.c:1025 xas_split_alloc+0xf8/0x128
Modules linked in: nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib
nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct
nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
ip_set rfkill nf_tables nfnetlink vfat fat virtio_balloon drm
fuse xfs libcrc32c crct10dif_ce ghash_ce sha2_ce sha256_arm64
sha1_ce virtio_net net_failover virtio_console virtio_blk failover
dimlib virtio_mmio
CPU: 35 PID: 7484 Comm: test Kdump: loaded Tainted: G W 6.10.0-rc5-gavin+ #9
Hardware name: QEMU KVM Virtual Machine, BIOS edk2-20240524-1.el9 05/24/2024
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : xas_split_alloc+0xf8/0x128
lr : split_huge_page_to_list_to_order+0x1c4/0x720
sp : ffff800087a4f6c0
x29: ffff800087a4f6c0 x28: ffff800087a4f720 x27: 000000001fffffff
x26: 0000000000000c40 x25: 000000000000000d x24: ffff00010625b858
x23: ffff800087a4f720 x22: ffffffdfc0780000 x21: 0000000000000000
x20: 0000000000000000 x19: ffffffdfc0780000 x18: 000000001ff40000
x17: 00000000ffffffff x16: 0000018000000000 x15: 51ec004000000000
x14: 0000e00000000000 x13: 0000000000002000 x12: 0000000000000020
x11: 51ec000000000000 x10: 51ece1c0ffff8000 x9 : ffffbeb961a44d28
x8 : 0000000000000003 x7 : ffffffdfc0456420 x6 : ffff0000e1aa6eb8
x5 : 20bf08b4fe778fca x4 : ffffffdfc0456420 x3 : 0000000000000c40
x2 : 000000000000000d x1 : 000000000000000c x0 : 0000000000000000
Call trace:
xas_split_alloc+0xf8/0x128
split_huge_page_to_list_to_order+0x1c4/0x720
truncate_inode_partial_folio+0xdc/0x160
truncate_inode_pages_range+0x1b4/0x4a8
truncate_pagecache_range+0x84/0xa0
xfs_flush_unmap_range+0x70/0x90 [xfs]
xfs_file_fallocate+0xfc/0x4d8 [xfs]
vfs_fallocate+0x124/0x2e8
ksys_fallocate+0x4c/0xa0
__arm64_sys_fallocate+0x24/0x38
invoke_syscall.constprop.0+0x7c/0xd8
do_el0_svc+0xb4/0xd0
el0_svc+0x44/0x1d8
el0t_64_sync_handler+0x134/0x150
el0t_64_sync+0x17c/0x180

Fix it by skipping to allocate PMD-sized page cache when its size is
larger than MAX_PAGECACHE_ORDER. For this specific case, we will fall to
regular path where the readahead window is determined by BDI's sysfs file
(read_ahead_kb).

The Linux kernel CVE team has assigned CVE-2024-41031 to this issue.

openEuler评分:(评分和向量)
3.3
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP4:不受影响
2.openEuler-22.03-LTS-SP1:不受影响
3.openEuler-22.03-LTS-SP3:不受影响
4.openEuler-22.03-LTS-SP4:不受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS:受影响
7.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP4:否
2.openEuler-22.03-LTS-SP1:否
3.openEuler-22.03-LTS-SP3:否
4.master(6.1.0):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否

@ 经过 cve-manager 解析, 已分析的内容如下表所示:

状态	需分析	内容
已分析	1.影响性分析说明	In the Linux kernel, the following vulnerability has been resolved:mm/filemap: skip to create PMD-sized page cache if neededOn ARM64, HPAGE_PMD_ORDER is 13 when the base page size is 64KB. ThePMD-sized page cache can't be supported by xarray as the following errormessages indicate.------------[ cut here ]------------WARNING: CPU: 35 PID: 7484 at lib/xarray.c:1025 xas_split_alloc+0xf8/0x128Modules linked in: nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib \nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct \nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 \ip_set rfkill nf_tables nfnetlink vfat fat virtio_balloon drm \fuse xfs libcrc32c crct10dif_ce ghash_ce sha2_ce sha256_arm64 \sha1_ce virtio_net net_failover virtio_console virtio_blk failover \dimlib virtio_mmioCPU: 35 PID: 7484 Comm: test Kdump: loaded Tainted: G W 6.10.0-rc5-gavin+ #9Hardware name: QEMU KVM Virtual Machine, BIOS edk2-20240524-1.el9 05/24/2024pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)pc : xas_split_alloc+0xf8/0x128lr : split_huge_page_to_list_to_order+0x1c4/0x720sp : ffff800087a4f6c0x29: ffff800087a4f6c0 x28: ffff800087a4f720 x27: 000000001fffffffx26: 0000000000000c40 x25: 000000000000000d x24: ffff00010625b858x23: ffff800087a4f720 x22: ffffffdfc0780000 x21: 0000000000000000x20: 0000000000000000 x19: ffffffdfc0780000 x18: 000000001ff40000x17: 00000000ffffffff x16: 0000018000000000 x15: 51ec004000000000x14: 0000e00000000000 x13: 0000000000002000 x12: 0000000000000020x11: 51ec000000000000 x10: 51ece1c0ffff8000 x9 : ffffbeb961a44d28x8 : 0000000000000003 x7 : ffffffdfc0456420 x6 : ffff0000e1aa6eb8x5 : 20bf08b4fe778fca x4 : ffffffdfc0456420 x3 : 0000000000000c40x2 : 000000000000000d x1 : 000000000000000c x0 : 0000000000000000Call trace: xas_split_alloc+0xf8/0x128 split_huge_page_to_list_to_order+0x1c4/0x720 truncate_inode_partial_folio+0xdc/0x160 truncate_inode_pages_range+0x1b4/0x4a8 truncate_pagecache_range+0x84/0xa0 xfs_flush_unmap_range+0x70/0x90 [xfs] xfs_file_fallocate+0xfc/0x4d8 [xfs] vfs_fallocate+0x124/0x2e8 ksys_fallocate+0x4c/0xa0 __arm64_sys_fallocate+0x24/0x38 invoke_syscall.constprop.0+0x7c/0xd8 do_el0_svc+0xb4/0xd0 el0_svc+0x44/0x1d8 el0t_64_sync_handler+0x134/0x150 el0t_64_sync+0x17c/0x180Fix it by skipping to allocate PMD-sized page cache when its size islarger than MAX_PAGECACHE_ORDER. For this specific case, we will fall toregular path where the readahead window is determined by BDI's sysfs file(read_ahead_kb).The Linux kernel CVE team has assigned CVE-2024-41031 to this issue.
已分析	2.openEulerScore	3.3
已分析	3.openEulerVector	AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
已分析	4.受影响版本排查	openEuler-24.03-LTS:受影响,openEuler-20.03-LTS-SP4:不受影响,openEuler-22.03-LTS-SP1:不受影响,openEuler-22.03-LTS-SP3:不受影响,openEuler-22.03-LTS-SP4:不受影响,master:不受影响,openEuler-24.03-LTS-Next:不受影响
已分析	5.修复是否涉及abi变化	openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否,openEuler-22.03-LTS-SP4:否

请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.

CVE-2024-41031

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

mm/filemap: skip to create PMD-sized page cache if needed

On ARM64, HPAGE_PMD_ORDER is 13 when the base page size is 64KB. The
PMD-sized page cache can't be supported by xarray as the following error
messages indicate.

------------[ cut here ]------------
WARNING: CPU: 35 PID: 7484 at lib/xarray.c:1025 xas_split_alloc+0xf8/0x128
Modules linked in: nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib
nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct
nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
ip_set rfkill nf_tables nfnetlink vfat fat virtio_balloon drm
fuse xfs libcrc32c crct10dif_ce ghash_ce sha2_ce sha256_arm64
sha1_ce virtio_net net_failover virtio_console virtio_blk failover
dimlib virtio_mmio
CPU: 35 PID: 7484 Comm: test Kdump: loaded Tainted: G W 6.10.0-rc5-gavin+ #9
Hardware name: QEMU KVM Virtual Machine, BIOS edk2-20240524-1.el9 05/24/2024
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : xas_split_alloc+0xf8/0x128
lr : split_huge_page_to_list_to_order+0x1c4/0x720
sp : ffff800087a4f6c0
x29: ffff800087a4f6c0 x28: ffff800087a4f720 x27: 000000001fffffff
x26: 0000000000000c40 x25: 000000000000000d x24: ffff00010625b858
x23: ffff800087a4f720 x22: ffffffdfc0780000 x21: 0000000000000000
x20: 0000000000000000 x19: ffffffdfc0780000 x18: 000000001ff40000
x17: 00000000ffffffff x16: 0000018000000000 x15: 51ec004000000000
x14: 0000e00000000000 x13: 0000000000002000 x12: 0000000000000020
x11: 51ec000000000000 x10: 51ece1c0ffff8000 x9 : ffffbeb961a44d28
x8 : 0000000000000003 x7 : ffffffdfc0456420 x6 : ffff0000e1aa6eb8
x5 : 20bf08b4fe778fca x4 : ffffffdfc0456420 x3 : 0000000000000c40
x2 : 000000000000000d x1 : 000000000000000c x0 : 0000000000000000
Call trace:
xas_split_alloc+0xf8/0x128
split_huge_page_to_list_to_order+0x1c4/0x720
truncate_inode_partial_folio+0xdc/0x160
truncate_inode_pages_range+0x1b4/0x4a8
truncate_pagecache_range+0x84/0xa0
xfs_flush_unmap_range+0x70/0x90 [xfs]
xfs_file_fallocate+0xfc/0x4d8 [xfs]
vfs_fallocate+0x124/0x2e8
ksys_fallocate+0x4c/0xa0
__arm64_sys_fallocate+0x24/0x38
invoke_syscall.constprop.0+0x7c/0xd8
do_el0_svc+0xb4/0xd0
el0_svc+0x44/0x1d8
el0t_64_sync_handler+0x134/0x150
el0t_64_sync+0x17c/0x180

Fix it by skipping to allocate PMD-sized page cache when its size is
larger than MAX_PAGECACHE_ORDER. For this specific case, we will fall to
regular path where the readahead window is determined by BDI's sysfs file
(read_ahead_kb).

The Linux kernel CVE team has assigned CVE-2024-41031 to this issue.

openEuler评分:(评分和向量)
3.3
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP4:不受影响
2.openEuler-22.03-LTS-SP1:不受影响
3.openEuler-22.03-LTS-SP3:不受影响
4.openEuler-22.03-LTS-SP4:不受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS:受影响
7.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP4:否
2.openEuler-22.03-LTS-SP1:否
3.openEuler-22.03-LTS-SP3:否
4.master(6.1.0):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否

@ 经过 cve-manager 解析, 已分析的内容如下表所示:

状态	需分析	内容
已分析	1.影响性分析说明	In the Linux kernel, the following vulnerability has been resolved:mm/filemap: skip to create PMD-sized page cache if neededOn ARM64, HPAGE_PMD_ORDER is 13 when the base page size is 64KB. ThePMD-sized page cache can't be supported by xarray as the following errormessages indicate.------------[ cut here ]------------WARNING: CPU: 35 PID: 7484 at lib/xarray.c:1025 xas_split_alloc+0xf8/0x128Modules linked in: nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib \nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct \nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 \ip_set rfkill nf_tables nfnetlink vfat fat virtio_balloon drm \fuse xfs libcrc32c crct10dif_ce ghash_ce sha2_ce sha256_arm64 \sha1_ce virtio_net net_failover virtio_console virtio_blk failover \dimlib virtio_mmioCPU: 35 PID: 7484 Comm: test Kdump: loaded Tainted: G W 6.10.0-rc5-gavin+ #9Hardware name: QEMU KVM Virtual Machine, BIOS edk2-20240524-1.el9 05/24/2024pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)pc : xas_split_alloc+0xf8/0x128lr : split_huge_page_to_list_to_order+0x1c4/0x720sp : ffff800087a4f6c0x29: ffff800087a4f6c0 x28: ffff800087a4f720 x27: 000000001fffffffx26: 0000000000000c40 x25: 000000000000000d x24: ffff00010625b858x23: ffff800087a4f720 x22: ffffffdfc0780000 x21: 0000000000000000x20: 0000000000000000 x19: ffffffdfc0780000 x18: 000000001ff40000x17: 00000000ffffffff x16: 0000018000000000 x15: 51ec004000000000x14: 0000e00000000000 x13: 0000000000002000 x12: 0000000000000020x11: 51ec000000000000 x10: 51ece1c0ffff8000 x9 : ffffbeb961a44d28x8 : 0000000000000003 x7 : ffffffdfc0456420 x6 : ffff0000e1aa6eb8x5 : 20bf08b4fe778fca x4 : ffffffdfc0456420 x3 : 0000000000000c40x2 : 000000000000000d x1 : 000000000000000c x0 : 0000000000000000Call trace: xas_split_alloc+0xf8/0x128 split_huge_page_to_list_to_order+0x1c4/0x720 truncate_inode_partial_folio+0xdc/0x160 truncate_inode_pages_range+0x1b4/0x4a8 truncate_pagecache_range+0x84/0xa0 xfs_flush_unmap_range+0x70/0x90 [xfs] xfs_file_fallocate+0xfc/0x4d8 [xfs] vfs_fallocate+0x124/0x2e8 ksys_fallocate+0x4c/0xa0 __arm64_sys_fallocate+0x24/0x38 invoke_syscall.constprop.0+0x7c/0xd8 do_el0_svc+0xb4/0xd0 el0_svc+0x44/0x1d8 el0t_64_sync_handler+0x134/0x150 el0t_64_sync+0x17c/0x180Fix it by skipping to allocate PMD-sized page cache when its size islarger than MAX_PAGECACHE_ORDER. For this specific case, we will fall toregular path where the readahead window is determined by BDI's sysfs file(read_ahead_kb).The Linux kernel CVE team has assigned CVE-2024-41031 to this issue.
已分析	2.openEulerScore	3.3
已分析	3.openEulerVector	AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
已分析	4.受影响版本排查	openEuler-24.03-LTS:受影响,openEuler-20.03-LTS-SP4:不受影响,openEuler-22.03-LTS-SP1:不受影响,openEuler-22.03-LTS-SP3:不受影响,openEuler-22.03-LTS-SP4:不受影响,master:不受影响,openEuler-24.03-LTS-Next:不受影响
已分析	5.修复是否涉及abi变化	openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否,openEuler-22.03-LTS-SP4:否

请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.

CVE-2024-41031

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

mm/filemap: skip to create PMD-sized page cache if needed

On ARM64, HPAGE_PMD_ORDER is 13 when the base page size is 64KB. The
PMD-sized page cache can't be supported by xarray as the following error
messages indicate.

------------[ cut here ]------------
WARNING: CPU: 35 PID: 7484 at lib/xarray.c:1025 xas_split_alloc+0xf8/0x128
Modules linked in: nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib
nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct
nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
ip_set rfkill nf_tables nfnetlink vfat fat virtio_balloon drm
fuse xfs libcrc32c crct10dif_ce ghash_ce sha2_ce sha256_arm64
sha1_ce virtio_net net_failover virtio_console virtio_blk failover
dimlib virtio_mmio
CPU: 35 PID: 7484 Comm: test Kdump: loaded Tainted: G W 6.10.0-rc5-gavin+ #9
Hardware name: QEMU KVM Virtual Machine, BIOS edk2-20240524-1.el9 05/24/2024
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : xas_split_alloc+0xf8/0x128
lr : split_huge_page_to_list_to_order+0x1c4/0x720
sp : ffff800087a4f6c0
x29: ffff800087a4f6c0 x28: ffff800087a4f720 x27: 000000001fffffff
x26: 0000000000000c40 x25: 000000000000000d x24: ffff00010625b858
x23: ffff800087a4f720 x22: ffffffdfc0780000 x21: 0000000000000000
x20: 0000000000000000 x19: ffffffdfc0780000 x18: 000000001ff40000
x17: 00000000ffffffff x16: 0000018000000000 x15: 51ec004000000000
x14: 0000e00000000000 x13: 0000000000002000 x12: 0000000000000020
x11: 51ec000000000000 x10: 51ece1c0ffff8000 x9 : ffffbeb961a44d28
x8 : 0000000000000003 x7 : ffffffdfc0456420 x6 : ffff0000e1aa6eb8
x5 : 20bf08b4fe778fca x4 : ffffffdfc0456420 x3 : 0000000000000c40
x2 : 000000000000000d x1 : 000000000000000c x0 : 0000000000000000
Call trace:
xas_split_alloc+0xf8/0x128
split_huge_page_to_list_to_order+0x1c4/0x720
truncate_inode_partial_folio+0xdc/0x160
truncate_inode_pages_range+0x1b4/0x4a8
truncate_pagecache_range+0x84/0xa0
xfs_flush_unmap_range+0x70/0x90 [xfs]
xfs_file_fallocate+0xfc/0x4d8 [xfs]
vfs_fallocate+0x124/0x2e8
ksys_fallocate+0x4c/0xa0
__arm64_sys_fallocate+0x24/0x38
invoke_syscall.constprop.0+0x7c/0xd8
do_el0_svc+0xb4/0xd0
el0_svc+0x44/0x1d8
el0t_64_sync_handler+0x134/0x150
el0t_64_sync+0x17c/0x180

Fix it by skipping to allocate PMD-sized page cache when its size is
larger than MAX_PAGECACHE_ORDER. For this specific case, we will fall to
regular path where the readahead window is determined by BDI's sysfs file
(read_ahead_kb).

The Linux kernel CVE team has assigned CVE-2024-41031 to this issue.

openEuler评分:(评分和向量)
3.3
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP4:不受影响
2.openEuler-22.03-LTS-SP1:不受影响
3.openEuler-22.03-LTS-SP3:不受影响
4.openEuler-22.03-LTS-SP4:不受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS:受影响
7.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP4:否
2.openEuler-22.03-LTS-SP1:否
3.openEuler-22.03-LTS-SP3:否
4.master(6.1.0):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否

@ 经过 cve-manager 解析, 已分析的内容如下表所示:

状态	需分析	内容
已分析	1.影响性分析说明	In the Linux kernel, the following vulnerability has been resolved:mm/filemap: skip to create PMD-sized page cache if neededOn ARM64, HPAGE_PMD_ORDER is 13 when the base page size is 64KB. ThePMD-sized page cache can't be supported by xarray as the following errormessages indicate.------------[ cut here ]------------WARNING: CPU: 35 PID: 7484 at lib/xarray.c:1025 xas_split_alloc+0xf8/0x128Modules linked in: nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib \nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct \nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 \ip_set rfkill nf_tables nfnetlink vfat fat virtio_balloon drm \fuse xfs libcrc32c crct10dif_ce ghash_ce sha2_ce sha256_arm64 \sha1_ce virtio_net net_failover virtio_console virtio_blk failover \dimlib virtio_mmioCPU: 35 PID: 7484 Comm: test Kdump: loaded Tainted: G W 6.10.0-rc5-gavin+ #9Hardware name: QEMU KVM Virtual Machine, BIOS edk2-20240524-1.el9 05/24/2024pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)pc : xas_split_alloc+0xf8/0x128lr : split_huge_page_to_list_to_order+0x1c4/0x720sp : ffff800087a4f6c0x29: ffff800087a4f6c0 x28: ffff800087a4f720 x27: 000000001fffffffx26: 0000000000000c40 x25: 000000000000000d x24: ffff00010625b858x23: ffff800087a4f720 x22: ffffffdfc0780000 x21: 0000000000000000x20: 0000000000000000 x19: ffffffdfc0780000 x18: 000000001ff40000x17: 00000000ffffffff x16: 0000018000000000 x15: 51ec004000000000x14: 0000e00000000000 x13: 0000000000002000 x12: 0000000000000020x11: 51ec000000000000 x10: 51ece1c0ffff8000 x9 : ffffbeb961a44d28x8 : 0000000000000003 x7 : ffffffdfc0456420 x6 : ffff0000e1aa6eb8x5 : 20bf08b4fe778fca x4 : ffffffdfc0456420 x3 : 0000000000000c40x2 : 000000000000000d x1 : 000000000000000c x0 : 0000000000000000Call trace: xas_split_alloc+0xf8/0x128 split_huge_page_to_list_to_order+0x1c4/0x720 truncate_inode_partial_folio+0xdc/0x160 truncate_inode_pages_range+0x1b4/0x4a8 truncate_pagecache_range+0x84/0xa0 xfs_flush_unmap_range+0x70/0x90 [xfs] xfs_file_fallocate+0xfc/0x4d8 [xfs] vfs_fallocate+0x124/0x2e8 ksys_fallocate+0x4c/0xa0 __arm64_sys_fallocate+0x24/0x38 invoke_syscall.constprop.0+0x7c/0xd8 do_el0_svc+0xb4/0xd0 el0_svc+0x44/0x1d8 el0t_64_sync_handler+0x134/0x150 el0t_64_sync+0x17c/0x180Fix it by skipping to allocate PMD-sized page cache when its size islarger than MAX_PAGECACHE_ORDER. For this specific case, we will fall toregular path where the readahead window is determined by BDI's sysfs file(read_ahead_kb).The Linux kernel CVE team has assigned CVE-2024-41031 to this issue.
已分析	2.openEulerScore	3.3
已分析	3.openEulerVector	AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
已分析	4.受影响版本排查	openEuler-24.03-LTS:受影响,openEuler-20.03-LTS-SP4:不受影响,openEuler-22.03-LTS-SP1:不受影响,openEuler-22.03-LTS-SP3:不受影响,openEuler-22.03-LTS-SP4:不受影响,master:不受影响,openEuler-24.03-LTS-Next:不受影响
已分析	5.修复是否涉及abi变化	openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否,openEuler-22.03-LTS-SP4:否

请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.

CVE-2024-41031

影响性分析说明：
In the Linux kernel, the following vulnerability has been resolved:

mm/filemap: skip to create PMD-sized page cache if needed

On ARM64, HPAGE_PMD_ORDER is 13 when the base page size is 64KB. The
PMD-sized page cache can_x27;t be supported by xarray as the following error
messages indicate.

------------[ cut here ]------------
WARNING: CPU: 35 PID: 7484 at lib/xarray.c:1025 xas_split_alloc+0xf8/0x128
Modules linked in: nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib
nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct
nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4
ip_set rfkill nf_tables nfnetlink vfat fat virtio_balloon drm
fuse xfs libcrc32c crct10dif_ce ghash_ce sha2_ce sha256_arm64
sha1_ce virtio_net net_failover virtio_console virtio_blk failover
dimlib virtio_mmio
CPU: 35 PID: 7484 Comm: test Kdump: loaded Tainted: G W 6.10.0-rc5-gavin+ #9
Hardware name: QEMU KVM Virtual Machine, BIOS edk2-20240524-1.el9 05/24/2024
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : xas_split_alloc+0xf8/0x128
lr : split_huge_page_to_list_to_order+0x1c4/0x720
sp : ffff800087a4f6c0
x29: ffff800087a4f6c0 x28: ffff800087a4f720 x27: 000000001fffffff
x26: 0000000000000c40 x25: 000000000000000d x24: ffff00010625b858
x23: ffff800087a4f720 x22: ffffffdfc0780000 x21: 0000000000000000
x20: 0000000000000000 x19: ffffffdfc0780000 x18: 000000001ff40000
x17: 00000000ffffffff x16: 0000018000000000 x15: 51ec004000000000
x14: 0000e00000000000 x13: 0000000000002000 x12: 0000000000000020
x11: 51ec000000000000 x10: 51ece1c0ffff8000 x9 : ffffbeb961a44d28
x8 : 0000000000000003 x7 : ffffffdfc0456420 x6 : ffff0000e1aa6eb8
x5 : 20bf08b4fe778fca x4 : ffffffdfc0456420 x3 : 0000000000000c40
x2 : 000000000000000d x1 : 000000000000000c x0 : 0000000000000000
Call trace:
xas_split_alloc+0xf8/0x128
split_huge_page_to_list_to_order+0x1c4/0x720
truncate_inode_partial_folio+0xdc/0x160
truncate_inode_pages_range+0x1b4/0x4a8
truncate_pagecache_range+0x84/0xa0
xfs_flush_unmap_range+0x70/0x90 [xfs]
xfs_file_fallocate+0xfc/0x4d8 [xfs]
vfs_fallocate+0x124/0x2e8
ksys_fallocate+0x4c/0xa0
__arm64_sys_fallocate+0x24/0x38
invoke_syscall.constprop.0+0x7c/0xd8
do_el0_svc+0xb4/0xd0
el0_svc+0x44/0x1d8
el0t_64_sync_handler+0x134/0x150
el0t_64_sync+0x17c/0x180

Fix it by skipping to allocate PMD-sized page cache when its size is
larger than MAX_PAGECACHE_ORDER. For this specific case, we will fall to
regular path where the readahead window is determined by BDI_x27;s sysfs file
(read_ahead_kb).

openEuler评分:(评分和向量)
3.3
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

受影响版本排查(受影响/不受影响):
1.openEuler-20.03-LTS-SP4:不受影响
2.openEuler-22.03-LTS-SP1:不受影响
3.openEuler-22.03-LTS-SP3:不受影响
4.openEuler-22.03-LTS-SP4:不受影响
5.master(6.1.0):不受影响
6.openEuler-24.03-LTS:受影响
7.openEuler-24.03-LTS-Next:不受影响

修复是否涉及abi变化(是/否)：
1.openEuler-20.03-LTS-SP4:否
2.openEuler-22.03-LTS-SP1:否
3.openEuler-22.03-LTS-SP3:否
4.master(6.1.0):否
5.openEuler-24.03-LTS:否
6.openEuler-24.03-LTS-Next:否
7.openEuler-22.03-LTS-SP4:否

===========================================================

@ 经过 cve-manager 解析, 已分析的内容如下表所示:

状态	需分析	内容
已分析	1.影响性分析说明	In the Linux kernel, the following vulnerability has been resolved:mm/filemap: skip to create PMD-sized page cache if neededOn ARM64, HPAGE_PMD_ORDER is 13 when the base page size is 64KB. ThePMD-sized page cache can_x27;t be supported by xarray as the following errormessages indicate.------------[ cut here ]------------WARNING: CPU: 35 PID: 7484 at lib/xarray.c:1025 xas_split_alloc+0xf8/0x128Modules linked in: nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib \nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct \nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 \ip_set rfkill nf_tables nfnetlink vfat fat virtio_balloon drm \fuse xfs libcrc32c crct10dif_ce ghash_ce sha2_ce sha256_arm64 \sha1_ce virtio_net net_failover virtio_console virtio_blk failover \dimlib virtio_mmioCPU: 35 PID: 7484 Comm: test Kdump: loaded Tainted: G W 6.10.0-rc5-gavin+ #9Hardware name: QEMU KVM Virtual Machine, BIOS edk2-20240524-1.el9 05/24/2024pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)pc : xas_split_alloc+0xf8/0x128lr : split_huge_page_to_list_to_order+0x1c4/0x720sp : ffff800087a4f6c0x29: ffff800087a4f6c0 x28: ffff800087a4f720 x27: 000000001fffffffx26: 0000000000000c40 x25: 000000000000000d x24: ffff00010625b858x23: ffff800087a4f720 x22: ffffffdfc0780000 x21: 0000000000000000x20: 0000000000000000 x19: ffffffdfc0780000 x18: 000000001ff40000x17: 00000000ffffffff x16: 0000018000000000 x15: 51ec004000000000x14: 0000e00000000000 x13: 0000000000002000 x12: 0000000000000020x11: 51ec000000000000 x10: 51ece1c0ffff8000 x9 : ffffbeb961a44d28x8 : 0000000000000003 x7 : ffffffdfc0456420 x6 : ffff0000e1aa6eb8x5 : 20bf08b4fe778fca x4 : ffffffdfc0456420 x3 : 0000000000000c40x2 : 000000000000000d x1 : 000000000000000c x0 : 0000000000000000Call trace: xas_split_alloc+0xf8/0x128 split_huge_page_to_list_to_order+0x1c4/0x720 truncate_inode_partial_folio+0xdc/0x160 truncate_inode_pages_range+0x1b4/0x4a8 truncate_pagecache_range+0x84/0xa0 xfs_flush_unmap_range+0x70/0x90 [xfs] xfs_file_fallocate+0xfc/0x4d8 [xfs] vfs_fallocate+0x124/0x2e8 ksys_fallocate+0x4c/0xa0 __arm64_sys_fallocate+0x24/0x38 invoke_syscall.constprop.0+0x7c/0xd8 do_el0_svc+0xb4/0xd0 el0_svc+0x44/0x1d8 el0t_64_sync_handler+0x134/0x150 el0t_64_sync+0x17c/0x180Fix it by skipping to allocate PMD-sized page cache when its size islarger than MAX_PAGECACHE_ORDER. For this specific case, we will fall toregular path where the readahead window is determined by BDI_x27;s sysfs file(read_ahead_kb).
已分析	2.openEulerScore	3.3
已分析	3.openEulerVector	AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
已分析	4.受影响版本排查	openEuler-24.03-LTS:受影响,openEuler-20.03-LTS-SP4:不受影响,openEuler-22.03-LTS-SP1:不受影响,openEuler-22.03-LTS-SP3:不受影响,openEuler-22.03-LTS-SP4:不受影响,master:不受影响,openEuler-24.03-LTS-Next:不受影响
已分析	5.修复是否涉及abi变化	openEuler-20.03-LTS-SP4:否,openEuler-22.03-LTS-SP1:否,openEuler-22.03-LTS-SP3:否,master:否,openEuler-24.03-LTS:否,openEuler-24.03-LTS-Next:否,openEuler-22.03-LTS-SP4:否

请确认分析内容的准确性, 确认无误后, 您可以进行后续步骤, 否则您可以继续分析.

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