{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "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   <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."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "fs/btrfs/qgroup.c"
               ],
               "versions": [
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "89840b12c8fa",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "3c98e91be6ae",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "f4b930a1602b",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "8eb912af5250",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "01d7c41eac91",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "044da1a371a0",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "588ae4fdd8b1",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "1da177e4c3f4",
                     "lessThan": "f7e942b5bb35",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "fs/btrfs/qgroup.c"
               ],
               "versions": [
                  {
                     "version": "4.9.335",
                     "lessThanOrEqual": "4.9.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.14.301",
                     "lessThanOrEqual": "4.14.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "4.19.268",
                     "lessThanOrEqual": "4.19.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.4.226",
                     "lessThanOrEqual": "5.4.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.158",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.82",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.0.12",
                     "lessThanOrEqual": "6.0.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "6.1",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/89840b12c8fad7200eb6478525c13261512c01be"
            },
            {
               "url": "https://git.kernel.org/stable/c/3c98e91be6aea4c7acf09da6eb0c107ea9186bb5"
            },
            {
               "url": "https://git.kernel.org/stable/c/f4b930a1602b05e77fee31f9616599b25e910a86"
            },
            {
               "url": "https://git.kernel.org/stable/c/8eb912af525042a7365295eb62f6d5270c2a6462"
            },
            {
               "url": "https://git.kernel.org/stable/c/01d7c41eac9129fba80d8aed0060caab4a7dbe09"
            },
            {
               "url": "https://git.kernel.org/stable/c/044da1a371a0da579e805e89c96865f62d8f6f69"
            },
            {
               "url": "https://git.kernel.org/stable/c/588ae4fdd8b11788a797776b10d6c44ae12bc133"
            },
            {
               "url": "https://git.kernel.org/stable/c/f7e942b5bb35d8e3af54053d19a6bf04143a3955"
            }
         ],
         "title": "btrfs: qgroup: fix sleep from invalid context bug in btrfs_qgroup_inherit()",
         "x_generator": {
            "engine": "bippy-c9c4e1df01b2"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2022-49033",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}