CVE-2024-44975

一、漏洞信息
 漏洞编号：[CVE-2024-44975](https://nvd.nist.gov/vuln/detail/CVE-2024-44975)
 漏洞归属组件：[kernel](https://gitee.com/src-openeuler/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 V3.0分值：
  BaseScore：5.5 Medium
  Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:cgroup/cpuset: fix panic caused by partcmd_updateWe find a bug as below:BUG: unable to handle page fault for address: 00000003PGD 0 P4D 0Oops: 0000 [#1] PREEMPT SMP NOPTICPU: 3 PID: 358 Comm: bash Tainted: G        W I        6.6.0-10893-g60d6Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/4RIP: 0010:partition_sched_domains_locked+0x483/0x600Code: 01 48 85 d2 74 0d 48 83 05 29 3f f8 03 01 f3 48 0f bc c2 89 c0 48 9RSP: 0018:ffffc90000fdbc58 EFLAGS: 00000202RAX: 0000000100000003 RBX: ffff888100b3dfa0 RCX: 0000000000000000RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000002fe80RBP: ffff888100b3dfb0 R08: 0000000000000001 R09: 0000000000000000R10: ffffc90000fdbcb0 R11: 0000000000000004 R12: 0000000000000002R13: ffff888100a92b48 R14: 0000000000000000 R15: 0000000000000000FS:  00007f44a5425740(0000) GS:ffff888237d80000(0000) knlGS:0000000000000CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033CR2: 0000000100030973 CR3: 000000010722c000 CR4: 00000000000006e0Call Trace: <TASK> ? show_regs+0x8c/0xa0 ? __die_body+0x23/0xa0 ? __die+0x3a/0x50 ? page_fault_oops+0x1d2/0x5c0 ? partition_sched_domains_locked+0x483/0x600 ? search_module_extables+0x2a/0xb0 ? search_exception_tables+0x67/0x90 ? kernelmode_fixup_or_oops+0x144/0x1b0 ? __bad_area_nosemaphore+0x211/0x360 ? up_read+0x3b/0x50 ? bad_area_nosemaphore+0x1a/0x30 ? exc_page_fault+0x890/0xd90 ? __lock_acquire.constprop.0+0x24f/0x8d0 ? __lock_acquire.constprop.0+0x24f/0x8d0 ? asm_exc_page_fault+0x26/0x30 ? partition_sched_domains_locked+0x483/0x600 ? partition_sched_domains_locked+0xf0/0x600 rebuild_sched_domains_locked+0x806/0xdc0 update_partition_sd_lb+0x118/0x130 cpuset_write_resmask+0xffc/0x1420 cgroup_file_write+0xb2/0x290 kernfs_fop_write_iter+0x194/0x290 new_sync_write+0xeb/0x160 vfs_write+0x16f/0x1d0 ksys_write+0x81/0x180 __x64_sys_write+0x21/0x30 x64_sys_call+0x2f25/0x4630 do_syscall_64+0x44/0xb0 entry_SYSCALL_64_after_hwframe+0x78/0xe2RIP: 0033:0x7f44a553c887It can be reproduced with cammands:cd /sys/fs/cgroup/mkdir testcd test/echo +cpuset > ../cgroup.subtree_controlecho root > cpuset.cpus.partitioncat /sys/fs/cgroup/cpuset.cpus.effective0-3echo 0-3 > cpuset.cpus // taking away all cpus from rootThis issue is caused by the incorrect rebuilding of scheduling domains.In this scenario, test/cpuset.cpus.partition should be an invalid rootand should not trigger the rebuilding of scheduling domains. When callingupdate_parent_effective_cpumask with partcmd_update, if newmask is notnull, it should recheck newmask whether there are cpus is availablefor parect/cs that has tasks.
 漏洞公开时间：2024-09-05 04:15:07
 漏洞创建时间：2024-09-27 02:08:13
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-44975
<details>
<summary>更多参考(点击展开)</summary>

| 参考来源 | 参考链接 | 来源链接 |
| ------- | -------- | -------- |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/73d6c6cf8ef6a3c532aa159f5114077746a372d6 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/959ab6350add903e352890af53e86663739fcb9a |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-44975 | https://bugzilla.suse.com/show_bug.cgi?id=1230237 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-44975 | https://bugzilla.suse.com/show_bug.cgi?id=1230237 |
| suse_bugzilla | https://git.kernel.org/stable/c/73d6c6cf8ef6a3c532aa159f5114077746a372d6 | https://bugzilla.suse.com/show_bug.cgi?id=1230237 |
| suse_bugzilla | https://git.kernel.org/stable/c/959ab6350add903e352890af53e86663739fcb9a | https://bugzilla.suse.com/show_bug.cgi?id=1230237 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-44975.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1230237 |
| suse_bugzilla | https://bugzilla.redhat.com/show_bug.cgi?id=2309838 | https://bugzilla.suse.com/show_bug.cgi?id=1230237 |
| redhat_bugzilla | https://lore.kernel.org/linux-cve-announce/2024090442-CVE-2024-44975-7c21@gregkh/T | https://bugzilla.redhat.com/show_bug.cgi?id=2309838 |
| ubuntu | https://www.cve.org/CVERecord?id=CVE-2024-44975 | https://ubuntu.com/security/CVE-2024-44975 |
| ubuntu | https://git.kernel.org/linus/959ab6350add903e352890af53e86663739fcb9a (6.11-rc5) | https://ubuntu.com/security/CVE-2024-44975 |
| ubuntu | https://git.kernel.org/stable/c/73d6c6cf8ef6a3c532aa159f5114077746a372d6 | https://ubuntu.com/security/CVE-2024-44975 |
| ubuntu | https://git.kernel.org/stable/c/959ab6350add903e352890af53e86663739fcb9a | https://ubuntu.com/security/CVE-2024-44975 |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2024-44975 | https://ubuntu.com/security/CVE-2024-44975 |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2024-44975 | https://ubuntu.com/security/CVE-2024-44975 |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2024-44975 | https://ubuntu.com/security/CVE-2024-44975 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-44975 |
| anolis |  | https://anas.openanolis.cn/cves/detail/CVE-2024-44975 |
| amazon_linux_explore | https://access.redhat.com/security/cve/CVE-2024-44975 | https://explore.alas.aws.amazon.com/CVE-2024-44975.html |
| amazon_linux_explore | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-44975 | https://explore.alas.aws.amazon.com/CVE-2024-44975.html |

</details>

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:
  openBrain开源漏洞感知系统
 漏洞补丁信息：
  <details>
<summary>详情(点击展开)</summary>

| 影响的包 | 修复版本 | 修复补丁 | 问题引入补丁 | 来源  |
| ------- | -------- | ------- | -------- | --------- |
|  |  | https://git.kernel.org/stable/c/73d6c6cf8ef6a3c532aa159f5114077746a372d6 |  | nvd |
|  |  | https://git.kernel.org/stable/c/959ab6350add903e352890af53e86663739fcb9a |  | nvd |
| linux |  | https://git.kernel.org/linus/959ab6350add903e352890af53e86663739fcb9a | https://git.kernel.org/linus/0c7f293efc87a06b51db9aa65256f8cb0a5a0a21 | ubuntu |

</details>

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:cgroup/cpuset: fix panic caused by partcmd_updateWe find a bug as below:BUG: unable to handle page fault for address: 00000003PGD 0 P4D 0Oops: 0000 [#1] PREEMPT SMP NOPTICPU: 3 PID: 358 Comm: bash Tainted: G        W I        6.6.0-10893-g60d6Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/4RIP: 0010:partition_sched_domains_locked+0x483/0x600Code: 01 48 85 d2 74 0d 48 83 05 29 3f f8 03 01 f3 48 0f bc c2 89 c0 48 9RSP: 0018:ffffc90000fdbc58 EFLAGS: 00000202RAX: 0000000100000003 RBX: ffff888100b3dfa0 RCX: 0000000000000000RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000002fe80RBP: ffff888100b3dfb0 R08: 0000000000000001 R09: 0000000000000000R10: ffffc90000fdbcb0 R11: 0000000000000004 R12: 0000000000000002R13: ffff888100a92b48 R14: 0000000000000000 R15: 0000000000000000FS:  00007f44a5425740(0000) GS:ffff888237d80000(0000) knlGS:0000000000000CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033CR2: 0000000100030973 CR3: 000000010722c000 CR4: 00000000000006e0Call Trace: <TASK> ? show_regs+0x8c/0xa0 ? __die_body+0x23/0xa0 ? __die+0x3a/0x50 ? page_fault_oops+0x1d2/0x5c0 ? partition_sched_domains_locked+0x483/0x600 ? search_module_extables+0x2a/0xb0 ? search_exception_tables+0x67/0x90 ? kernelmode_fixup_or_oops+0x144/0x1b0 ? __bad_area_nosemaphore+0x211/0x360 ? up_read+0x3b/0x50 ? bad_area_nosemaphore+0x1a/0x30 ? exc_page_fault+0x890/0xd90 ? __lock_acquire.constprop.0+0x24f/0x8d0 ? __lock_acquire.constprop.0+0x24f/0x8d0 ? asm_exc_page_fault+0x26/0x30 ? partition_sched_domains_locked+0x483/0x600 ? partition_sched_domains_locked+0xf0/0x600 rebuild_sched_domains_locked+0x806/0xdc0 update_partition_sd_lb+0x118/0x130 cpuset_write_resmask+0xffc/0x1420 cgroup_file_write+0xb2/0x290 kernfs_fop_write_iter+0x194/0x290 new_sync_write+0xeb/0x160 vfs_write+0x16f/0x1d0 ksys_write+0x81/0x180 __x64_sys_write+0x21/0x30 x64_sys_call+0x2f25/0x4630 do_syscall_64+0x44/0xb0 entry_SYSCALL_64_after_hwframe+0x78/0xe2RIP: 0033:0x7f44a553c887It can be reproduced with cammands:cd /sys/fs/cgroup/mkdir testcd test/echo +cpuset > ../cgroup.subtree_controlecho root > cpuset.cpus.partitioncat /sys/fs/cgroup/cpuset.cpus.effective0-3echo 0-3 > cpuset.cpus // taking away all cpus from rootThis issue is caused by the incorrect rebuilding of scheduling domains.In this scenario, test/cpuset.cpus.partition should be an invalid rootand should not trigger the rebuilding of scheduling domains. When callingupdate_parent_effective_cpumask with partcmd_update, if newmask is notnull, it should recheck newmask whether there are cpus is availablefor parect/cs that has tasks.
 openEuler评分：
  5.5
 Vector：CVSS：3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
 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-SP3(5.10.0):不受影响
4.openEuler-22.03-LTS-SP4(5.10.0):不受影响
5.master(6.6.0):不受影响
6.openEuler-24.03-LTS-Next(6.6.0):不受影响
7.openEuler-24.03-LTS-SP1(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(6.6.0):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
8.openEuler-24.03-LTS-SP1(6.6.0):否

原因说明：
  1.openEuler-24.03-LTS(6.6.0):正常修复
2.master(6.6.0):不受影响-漏洞代码不能被攻击者触发
3.openEuler-24.03-LTS-Next(6.6.0):不受影响-漏洞代码不能被攻击者触发
4.openEuler-20.03-LTS-SP4(4.19.90):不受影响-漏洞代码不存在
5.openEuler-22.03-LTS-SP3(5.10.0):不受影响-漏洞代码不存在
6.openEuler-22.03-LTS-SP4(5.10.0):不受影响-漏洞代码不存在
7.openEuler-24.03-LTS-SP1(6.6.0):不受影响-漏洞代码不存在

三、漏洞修复
安全公告链接：https://www.openeuler.org/zh/security/safety-bulletin/detail/?id=openEuler-SA-2025-1097

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