CVE-2022-49033

MEDIUM EPSS 16.0%
Published Oct 21, 20241y ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Oct 21, 2024 1y ago
Last Modified Jun 17, 2026 2w ago

Description

In the Linux kernel, the following vulnerability has been resolved: btrfs: qgroup: fix sleep from invalid context bug in btrfs_qgroup_inherit() Syzkaller reported BUG as follows: BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 Call Trace: <TASK> dump_stack_lvl+0xcd/0x134 __might_resched.cold+0x222/0x26b kmem_cache_alloc+0x2e7/0x3c0 update_qgroup_limit_item+0xe1/0x390 btrfs_qgroup_inherit+0x147b/0x1ee0 create_subvol+0x4eb/0x1710 btrfs_mksubvol+0xfe5/0x13f0 __btrfs_ioctl_snap_create+0x2b0/0x430 btrfs_ioctl_snap_create_v2+0x25a/0x520 btrfs_ioctl+0x2a1c/0x5ce0 __x64_sys_ioctl+0x193/0x200 do_syscall_64+0x35/0x80 Fix this by calling qgroup_dirty() on @dstqgroup, and update limit item in btrfs_run_qgroups() later outside of the spinlock context.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
16.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 12

VendorProductVersionRange
linuxlinux_kernel* <4.14.301
linuxlinux_kernel*≥4.15  –  <4.19.268
linuxlinux_kernel*≥4.20  –  <5.4.226
linuxlinux_kernel*≥5.5  –  <5.10.158
linuxlinux_kernel*≥5.11  –  <5.15.82
linuxlinux_kernel*≥5.16  –  <6.0.12
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any
linuxlinux_kernel6.1any

References 8

  • git.kernel.org https://git.kernel.org/stable/c/01d7c41eac9129fba80d8aed0060caab4a7dbe09
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/044da1a371a0da579e805e89c96865f62d8f6f69
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3c98e91be6aea4c7acf09da6eb0c107ea9186bb5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/588ae4fdd8b11788a797776b10d6c44ae12bc133
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/89840b12c8fad7200eb6478525c13261512c01be
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8eb912af525042a7365295eb62f6d5270c2a6462
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f4b930a1602b05e77fee31f9616599b25e910a86
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f7e942b5bb35d8e3af54053d19a6bf04143a3955
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/01d7c41eac9129fba80d8aed0060caab4a7dbe09
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/044da1a371a0da579e805e89c96865f62d8f6f69
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3c98e91be6aea4c7acf09da6eb0c107ea9186bb5
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/588ae4fdd8b11788a797776b10d6c44ae12bc133
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/89840b12c8fad7200eb6478525c13261512c01be
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8eb912af525042a7365295eb62f6d5270c2a6462
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f4b930a1602b05e77fee31f9616599b25e910a86
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/f7e942b5bb35d8e3af54053d19a6bf04143a3955
    Patch