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.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00007.

Exploitation none

Automatable no

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
e8c8541ac379709db8d2339e1cb720469fc2cd8f affected
< 89840b12c8fad7200eb6478525c13261512c01be
e8c8541ac379709db8d2339e1cb720469fc2cd8f affected
< 3c98e91be6aea4c7acf09da6eb0c107ea9186bb5
e8c8541ac379709db8d2339e1cb720469fc2cd8f affected
< f4b930a1602b05e77fee31f9616599b25e910a86
e8c8541ac379709db8d2339e1cb720469fc2cd8f affected
< 8eb912af525042a7365295eb62f6d5270c2a6462
e8c8541ac379709db8d2339e1cb720469fc2cd8f affected
< 01d7c41eac9129fba80d8aed0060caab4a7dbe09
e8c8541ac379709db8d2339e1cb720469fc2cd8f affected
< 044da1a371a0da579e805e89c96865f62d8f6f69
e8c8541ac379709db8d2339e1cb720469fc2cd8f affected
< 588ae4fdd8b11788a797776b10d6c44ae12bc133
e8c8541ac379709db8d2339e1cb720469fc2cd8f affected
< f7e942b5bb35d8e3af54053d19a6bf04143a3955
Linux Linux affected
Version Status Constraints
4.1 affected
—
0 unaffected
< 4.1
4.9.335 unaffected
≤ 4.9.*
4.14.301 unaffected
≤ 4.14.*
4.19.268 unaffected
≤ 4.19.*
5.4.226 unaffected
≤ 5.4.*
5.10.158 unaffected
≤ 5.10.*
5.15.82 unaffected
≤ 5.15.*
6.0.12 unaffected
≤ 6.0.*
6.1 unaffected
≤ *

Configuration 1 [-]

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:*

No data.

No data.

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/01d7c41eac9129fba80d8aed0060caab4a7dbe09 cve-icon cve-icon
https://git.kernel.org/stable/c/044da1a371a0da579e805e89c96865f62d8f6f69 cve-icon cve-icon
https://git.kernel.org/stable/c/3c98e91be6aea4c7acf09da6eb0c107ea9186bb5 cve-icon cve-icon
https://git.kernel.org/stable/c/588ae4fdd8b11788a797776b10d6c44ae12bc133 cve-icon cve-icon
https://git.kernel.org/stable/c/89840b12c8fad7200eb6478525c13261512c01be cve-icon cve-icon
https://git.kernel.org/stable/c/8eb912af525042a7365295eb62f6d5270c2a6462 cve-icon cve-icon
https://git.kernel.org/stable/c/f4b930a1602b05e77fee31f9616599b25e910a86 cve-icon cve-icon
https://git.kernel.org/stable/c/f7e942b5bb35d8e3af54053d19a6bf04143a3955 cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2024102156-CVE-2022-49033-a8c6@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2022-49033 cve-icon
https://www.cve.org/CVERecord?id=CVE-2022-49033 cve-icon
History

Wed, 30 Oct 2024 22:00:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Weaknesses NVD-CWE-noinfo
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:6.1:rc6:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel

Thu, 24 Oct 2024 14:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-20

Tue, 22 Oct 2024 13:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

threat_severity

Moderate

Mon, 21 Oct 2024 20:15:00 +0000

Type Values Removed Values Added
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.
Title btrfs: qgroup: fix sleep from invalid context bug in btrfs_qgroup_inherit()
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2025-12-23T13:21:33.615Z

Reserved: 2024-08-22T01:27:53.653Z

Link: CVE-2022-49033

cve-icon Vulnrichment

Updated: 2024-10-22T13:11:01.908Z

cve-icon NVD

Status : Analyzed

Published: 2024-10-21T20:15:13.943

Modified: 2024-10-30T21:50:50.007

Link: CVE-2022-49033

cve-icon Redhat

Severity : Moderate

Publid Date: 2024-10-21T00:00:00Z

Links: CVE-2022-49033 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses