ghsa-wgxq-5c3g-fmq8
Vulnerability from github
Published
2024-10-21 21:30
Modified
2024-10-31 00:30
Details

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: 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.

Show details on source website


{
  "affected": [],
  "aliases": [
    "CVE-2022-49033"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-21T20:15:13Z",
    "severity": "MODERATE"
  },
  "details": "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   \u003cTASK\u003e\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.",
  "id": "GHSA-wgxq-5c3g-fmq8",
  "modified": "2024-10-31T00:30:36Z",
  "published": "2024-10-21T21:30:52Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49033"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/01d7c41eac9129fba80d8aed0060caab4a7dbe09"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/044da1a371a0da579e805e89c96865f62d8f6f69"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3c98e91be6aea4c7acf09da6eb0c107ea9186bb5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/588ae4fdd8b11788a797776b10d6c44ae12bc133"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/89840b12c8fad7200eb6478525c13261512c01be"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8eb912af525042a7365295eb62f6d5270c2a6462"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f4b930a1602b05e77fee31f9616599b25e910a86"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f7e942b5bb35d8e3af54053d19a6bf04143a3955"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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