{ "id": "CVE-2022-49033", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "published": "2024-10-21T20:15:13.943", "lastModified": "2024-10-30T21:50:50.007", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [ { "lang": "en", "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 \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: correcci\u00f3n del error de suspensi\u00f3n desde un contexto no v\u00e1lido en btrfs_qgroup_inherit() Syzkaller inform\u00f3 de un ERROR como el siguiente: ERROR: funci\u00f3n de suspensi\u00f3n llamada desde un contexto no v\u00e1lido 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 l\u00edmite en btrfs_run_qgroups() m\u00e1s tarde fuera del contexto de spinlock." } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "baseScore": 5.5, "baseSeverity": "MEDIUM", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "availabilityImpact": "HIGH" }, "exploitabilityScore": 1.8, "impactScore": 3.6 } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "NVD-CWE-noinfo" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "4.14.301", "matchCriteriaId": "13B8AC8B-CE6D-4DF7-9856-FCDB8A56B156" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", 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