CVE-2024-40962

一、漏洞信息
 漏洞编号：[CVE-2024-40962](https://nvd.nist.gov/vuln/detail/CVE-2024-40962)
 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 V2.0分值：
  BaseScore：0.0 Medium
  Vector：CVSS：2.0/
 漏洞简述：
  In the Linux kernel, the following vulnerability has been resolved:btrfs: zoned: allocate dummy checksums for zoned NODATASUM writesShin ichiro reported that when he s running fstests  test-casebtrfs/167 on emulated zoned devices, he s seeing the following NULLpointer dereference in  btrfs_zone_finish_endio() :  Oops: general protection fault, probably for non-canonical address 0xdffffc0000000011: 0000 [#1] PREEMPT SMP KASAN NOPTI  KASAN: null-ptr-deref in range [0x0000000000000088-0x000000000000008f]  CPU: 4 PID: 2332440 Comm: kworker/u80:15 Tainted: G        W          6.10.0-rc2-kts+ #4  Hardware name: Supermicro Super Server/X11SPi-TF, BIOS 3.3 02/21/2020  Workqueue: btrfs-endio-write btrfs_work_helper [btrfs]  RIP: 0010:btrfs_zone_finish_endio.part.0+0x34/0x160 [btrfs]  RSP: 0018:ffff88867f107a90 EFLAGS: 00010206  RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff893e5534  RDX: 0000000000000011 RSI: 0000000000000004 RDI: 0000000000000088  RBP: 0000000000000002 R08: 0000000000000001 R09: ffffed1081696028  R10: ffff88840b4b0143 R11: ffff88834dfff600 R12: ffff88840b4b0000  R13: 0000000000020000 R14: 0000000000000000 R15: ffff888530ad5210  FS:  0000000000000000(0000) GS:ffff888e3f800000(0000) knlGS:0000000000000000  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033  CR2: 00007f87223fff38 CR3: 00000007a7c6a002 CR4: 00000000007706f0  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000  DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400  PKRU: 55555554  Call Trace:   <TASK>   ? __die_body.cold+0x19/0x27   ? die_addr+0x46/0x70   ? exc_general_protection+0x14f/0x250   ? asm_exc_general_protection+0x26/0x30   ? do_raw_read_unlock+0x44/0x70   ? btrfs_zone_finish_endio.part.0+0x34/0x160 [btrfs]   btrfs_finish_one_ordered+0x5d9/0x19a0 [btrfs]   ? __pfx_lock_release+0x10/0x10   ? do_raw_write_lock+0x90/0x260   ? __pfx_do_raw_write_lock+0x10/0x10   ? __pfx_btrfs_finish_one_ordered+0x10/0x10 [btrfs]   ? _raw_write_unlock+0x23/0x40   ? btrfs_finish_ordered_zoned+0x5a9/0x850 [btrfs]   ? lock_acquire+0x435/0x500   btrfs_work_helper+0x1b1/0xa70 [btrfs]   ? __schedule+0x10a8/0x60b0   ? __pfx___might_resched+0x10/0x10   process_one_work+0x862/0x1410   ? __pfx_lock_acquire+0x10/0x10   ? __pfx_process_one_work+0x10/0x10   ? assign_work+0x16c/0x240   worker_thread+0x5e6/0x1010   ? __pfx_worker_thread+0x10/0x10   kthread+0x2c3/0x3a0   ? trace_irq_enable.constprop.0+0xce/0x110   ? __pfx_kthread+0x10/0x10   ret_from_fork+0x31/0x70   ? __pfx_kthread+0x10/0x10   ret_from_fork_asm+0x1a/0x30   </TASK>Enabling CONFIG_BTRFS_ASSERT revealed the following assertion totrigger:  assertion failed: !list_empty(&ordered->list), in fs/btrfs/zoned.c:1815This indicates, that we re missing the checksums list on theordered_extent. As btrfs/167 is doing a NOCOW write this is to beexpected.Further analysis with drgn confirmed the assumption:  >>> inode = prog.crashed_thread().stack_trace()[11][ ordered ].inode  >>> btrfs_inode = drgn.container_of(inode,  struct btrfs_inode ,           				 vfs_inode )  >>> print(btrfs_inode.flags)  (u32)1As zoned emulation mode simulates conventional zones on regular devices,we cannot use zone-append for writing. But we re only attaching dummychecksums if we re doing a zone-append write.So for NOCOW zoned data writes on conventional zones, also attach adummy checksum.
 漏洞公开时间：2024-07-12 21:15:18
 漏洞创建时间：2024-07-27 01:57:30
 漏洞详情参考链接：
  https://nvd.nist.gov/vuln/detail/CVE-2024-40962
<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/082b3d4e788953a3ff42ecdb70c4210149076285 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/25cfe59f4470a051d1b80f51fa0ca3a5048e4a19 |  |
| 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | https://git.kernel.org/stable/c/cebae292e0c32a228e8f2219c270a7237be24a6a |  |
| suse_bugzilla | http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2024-40962 | https://bugzilla.suse.com/show_bug.cgi?id=1227815 |
| suse_bugzilla | https://www.cve.org/CVERecord?id=CVE-2024-40962 | https://bugzilla.suse.com/show_bug.cgi?id=1227815 |
| suse_bugzilla | https://git.kernel.org/stable/c/082b3d4e788953a3ff42ecdb70c4210149076285 | https://bugzilla.suse.com/show_bug.cgi?id=1227815 |
| suse_bugzilla | https://git.kernel.org/stable/c/25cfe59f4470a051d1b80f51fa0ca3a5048e4a19 | https://bugzilla.suse.com/show_bug.cgi?id=1227815 |
| suse_bugzilla | https://git.kernel.org/stable/c/cebae292e0c32a228e8f2219c270a7237be24a6a | https://bugzilla.suse.com/show_bug.cgi?id=1227815 |
| suse_bugzilla | https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2024/CVE-2024-40962.mbox | https://bugzilla.suse.com/show_bug.cgi?id=1227815 |
| ubuntu | https://www.cve.org/CVERecord?id=CVE-2024-40962 | https://ubuntu.com/security/CVE-2024-40962 |
| ubuntu | https://git.kernel.org/linus/cebae292e0c32a228e8f2219c270a7237be24a6a (6.10-rc5) | https://ubuntu.com/security/CVE-2024-40962 |
| ubuntu | https://git.kernel.org/stable/c/082b3d4e788953a3ff42ecdb70c4210149076285 | https://ubuntu.com/security/CVE-2024-40962 |
| ubuntu | https://git.kernel.org/stable/c/25cfe59f4470a051d1b80f51fa0ca3a5048e4a19 | https://ubuntu.com/security/CVE-2024-40962 |
| ubuntu | https://git.kernel.org/stable/c/cebae292e0c32a228e8f2219c270a7237be24a6a | https://ubuntu.com/security/CVE-2024-40962 |
| ubuntu | https://nvd.nist.gov/vuln/detail/CVE-2024-40962 | https://ubuntu.com/security/CVE-2024-40962 |
| ubuntu | https://launchpad.net/bugs/cve/CVE-2024-40962 | https://ubuntu.com/security/CVE-2024-40962 |
| ubuntu | https://security-tracker.debian.org/tracker/CVE-2024-40962 | https://ubuntu.com/security/CVE-2024-40962 |
| debian |  | https://security-tracker.debian.org/tracker/CVE-2024-40962 |
| cve_search |  | https://git.kernel.org/stable/c/082b3d4e788953a3ff42ecdb70c4210149076285 |
| cve_search |  | https://git.kernel.org/stable/c/25cfe59f4470a051d1b80f51fa0ca3a5048e4a19 |
| cve_search |  | https://git.kernel.org/stable/c/cebae292e0c32a228e8f2219c270a7237be24a6a |

</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  |
| ------- | -------- | ------- | -------- | --------- |
| linux |  | https://git.kernel.org/linus/cebae292e0c32a228e8f2219c270a7237be24a6a | https://git.kernel.org/linus/cbfce4c7fbde23cc8bcba44822a58c728caf6ec9 | 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:btrfs: zoned: allocate dummy checksums for zoned NODATASUM writesShin ichiro reported that when he s running fstests  test-casebtrfs/167 on emulated zoned devices, he s seeing the following NULLpointer dereference in  btrfs_zone_finish_endio() :  Oops: general protection fault, probably for non-canonical address 0xdffffc0000000011: 0000 [#1] PREEMPT SMP KASAN NOPTI  KASAN: null-ptr-deref in range [0x0000000000000088-0x000000000000008f]  CPU: 4 PID: 2332440 Comm: kworker/u80:15 Tainted: G        W          6.10.0-rc2-kts+ #4  Hardware name: Supermicro Super Server/X11SPi-TF, BIOS 3.3 02/21/2020  Workqueue: btrfs-endio-write btrfs_work_helper [btrfs]  RIP: 0010:btrfs_zone_finish_endio.part.0+0x34/0x160 [btrfs]  RSP: 0018:ffff88867f107a90 EFLAGS: 00010206  RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff893e5534  RDX: 0000000000000011 RSI: 0000000000000004 RDI: 0000000000000088  RBP: 0000000000000002 R08: 0000000000000001 R09: ffffed1081696028  R10: ffff88840b4b0143 R11: ffff88834dfff600 R12: ffff88840b4b0000  R13: 0000000000020000 R14: 0000000000000000 R15: ffff888530ad5210  FS:  0000000000000000(0000) GS:ffff888e3f800000(0000) knlGS:0000000000000000  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033  CR2: 00007f87223fff38 CR3: 00000007a7c6a002 CR4: 00000000007706f0  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000  DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400  PKRU: 55555554  Call Trace:   <TASK>   ? __die_body.cold+0x19/0x27   ? die_addr+0x46/0x70   ? exc_general_protection+0x14f/0x250   ? asm_exc_general_protection+0x26/0x30   ? do_raw_read_unlock+0x44/0x70   ? btrfs_zone_finish_endio.part.0+0x34/0x160 [btrfs]   btrfs_finish_one_ordered+0x5d9/0x19a0 [btrfs]   ? __pfx_lock_release+0x10/0x10   ? do_raw_write_lock+0x90/0x260   ? __pfx_do_raw_write_lock+0x10/0x10   ? __pfx_btrfs_finish_one_ordered+0x10/0x10 [btrfs]   ? _raw_write_unlock+0x23/0x40   ? btrfs_finish_ordered_zoned+0x5a9/0x850 [btrfs]   ? lock_acquire+0x435/0x500   btrfs_work_helper+0x1b1/0xa70 [btrfs]   ? __schedule+0x10a8/0x60b0   ? __pfx___might_resched+0x10/0x10   process_one_work+0x862/0x1410   ? __pfx_lock_acquire+0x10/0x10   ? __pfx_process_one_work+0x10/0x10   ? assign_work+0x16c/0x240   worker_thread+0x5e6/0x1010   ? __pfx_worker_thread+0x10/0x10   kthread+0x2c3/0x3a0   ? trace_irq_enable.constprop.0+0xce/0x110   ? __pfx_kthread+0x10/0x10   ret_from_fork+0x31/0x70   ? __pfx_kthread+0x10/0x10   ret_from_fork_asm+0x1a/0x30   </TASK>Enabling CONFIG_BTRFS_ASSERT revealed the following assertion totrigger:  assertion failed: !list_empty(&ordered->list), in fs/btrfs/zoned.c:1815This indicates, that we re missing the checksums list on theordered_extent. As btrfs/167 is doing a NOCOW write this is to beexpected.Further analysis with drgn confirmed the assumption:  >>> inode = prog.crashed_thread().stack_trace()[11][ ordered ].inode  >>> btrfs_inode = drgn.container_of(inode,  struct btrfs_inode ,            vfs_inode )  >>> print(btrfs_inode.flags)  (u32)1As zoned emulation mode simulates conventional zones on regular devices,we cannot use zone-append for writing. But we re only attaching dummychecksums if we re doing a zone-append write.So for NOCOW zoned data writes on conventional zones, also attach adummy checksum. 
 openEuler评分：
  5.5
 Vector：CVSS：2.0/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-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-2024-1960

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