CVE-2022-49033
Estado: AnalizadaMedia (5.5)—
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:
Fix this by calling qgroup_dirty() on @dstqgroup, and update limit item in btrfs_run_qgroups() later outside of the spinlock context.
Detalles técnicos trazas, registros y código del informe original
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+0x35/0x80CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.25%
- Percentil entre todas las CVEs puntuadas: 15
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
CWE
- NVD-CWE-noinfo
Referencias
- https://git.kernel.org/stable/c/01d7c41eac9129fba80d8aed0060caab4a7dbe09
- https://git.kernel.org/stable/c/044da1a371a0da579e805e89c96865f62d8f6f69
- https://git.kernel.org/stable/c/3c98e91be6aea4c7acf09da6eb0c107ea9186bb5
- https://git.kernel.org/stable/c/588ae4fdd8b11788a797776b10d6c44ae12bc133
- https://git.kernel.org/stable/c/89840b12c8fad7200eb6478525c13261512c01be
- https://git.kernel.org/stable/c/8eb912af525042a7365295eb62f6d5270c2a6462
- https://git.kernel.org/stable/c/f4b930a1602b05e77fee31f9616599b25e910a86
- https://git.kernel.org/stable/c/f7e942b5bb35d8e3af54053d19a6bf04143a3955
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: qgroup: fix sleep from invalid context bug in btrfs_qgroup_inherit()\n\nSyzkaller reported BUG as follows:\n\n BUG: sleeping function called from invalid context at\n include/linux/sched/mm.h:274\n Call Trace:\n <TASK>\n dump_stack_lvl+0xcd/0x134\n __might_resched.cold+0x222/0x26b\n kmem_cache_alloc+0x2e7/0x3c0\n update_qgroup_limit_item+0xe1/0x390\n btrfs_qgroup_inherit+0x147b/0x1ee0\n create_subvol+0x4eb/0x1710\n btrfs_mksubvol+0xfe5/0x13f0\n __btrfs_ioctl_snap_create+0x2b0/0x430\n btrfs_ioctl_snap_create_v2+0x25a/0x520\n btrfs_ioctl+0x2a1c/0x5ce0\n __x64_sys_ioctl+0x193/0x200\n do_syscall_64+0x35/0x80\n\nFix this by calling qgroup_dirty() on @dstqgroup, and update limit item in\nbtrfs_run_qgroups() later outside of the spinlock context."
},
{
"lang": "es",
"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: btrfs: qgroup: corrección del error de suspensión desde un contexto no válido en btrfs_qgroup_inherit() Syzkaller informó de un ERROR como el siguiente: ERROR: función de suspensión llamada desde un contexto no válido en include/linux/sched/mm.h:274 Seguimiento de llamadas: 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 Solucione esto llamando a qgroup_dirty() en @dstqgroup y actualice el elemento de límite en btrfs_run_qgroups() más tarde fuera del contexto de spinlock."
}
],
"lastModified": "2026-06-17T05:16:53.887",
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