CVE-2022-50699

{
  "id": "CVE-2022-50699",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "ee1a84fdfeedfd7362e9a8a8f15fedc3482ade2d",
              "lessThan": "2723875e9d677401d775a03a72abab7e9538c20c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ee1a84fdfeedfd7362e9a8a8f15fedc3482ade2d",
              "lessThan": "3006766d247bc93a25b34e92fff2f75bda597e2e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ee1a84fdfeedfd7362e9a8a8f15fedc3482ade2d",
              "lessThan": "277378631d26477451424cc73982b977961f3d8b",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "ee1a84fdfeedfd7362e9a8a8f15fedc3482ade2d",
              "lessThan": "abe3c631447dcd1ba7af972fe6f054bee6f136fa",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "security/selinux/ss/services.c",
            "security/selinux/ss/sidtab.c",
            "security/selinux/ss/sidtab.h"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.0"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.152",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.76",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.0.6",
              "versionType": "semver",
              "lessThanOrEqual": "6.0.*"
            },
            {
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "security/selinux/ss/services.c",
            "security/selinux/ss/sidtab.c",
            "security/selinux/ss/sidtab.h"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2025-12-24T11:15:50.050",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/2723875e9d677401d775a03a72abab7e9538c20c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/277378631d26477451424cc73982b977961f3d8b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/3006766d247bc93a25b34e92fff2f75bda597e2e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/abe3c631447dcd1ba7af972fe6f054bee6f136fa",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Deferred",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nselinux: enable use of both GFP_KERNEL and GFP_ATOMIC in convert_context()\n\nThe following warning was triggered on a hardware environment:\n\n  SELinux: Converting 162 SID table entries...\n  BUG: sleeping function called from invalid context at\n       __might_sleep+0x60/0x74 0x0\n  in_atomic(): 1, irqs_disabled(): 128, non_block: 0, pid: 5943, name: tar\n  CPU: 7 PID: 5943 Comm: tar Tainted: P O 5.10.0 #1\n  Call trace:\n   dump_backtrace+0x0/0x1c8\n   show_stack+0x18/0x28\n   dump_stack+0xe8/0x15c\n   ___might_sleep+0x168/0x17c\n   __might_sleep+0x60/0x74\n   __kmalloc_track_caller+0xa0/0x7dc\n   kstrdup+0x54/0xac\n   convert_context+0x48/0x2e4\n   sidtab_context_to_sid+0x1c4/0x36c\n   security_context_to_sid_core+0x168/0x238\n   security_context_to_sid_default+0x14/0x24\n   inode_doinit_use_xattr+0x164/0x1e4\n   inode_doinit_with_dentry+0x1c0/0x488\n   selinux_d_instantiate+0x20/0x34\n   security_d_instantiate+0x70/0xbc\n   d_splice_alias+0x4c/0x3c0\n   ext4_lookup+0x1d8/0x200 [ext4]\n   __lookup_slow+0x12c/0x1e4\n   walk_component+0x100/0x200\n   path_lookupat+0x88/0x118\n   filename_lookup+0x98/0x130\n   user_path_at_empty+0x48/0x60\n   vfs_statx+0x84/0x140\n   vfs_fstatat+0x20/0x30\n   __se_sys_newfstatat+0x30/0x74\n   __arm64_sys_newfstatat+0x1c/0x2c\n   el0_svc_common.constprop.0+0x100/0x184\n   do_el0_svc+0x1c/0x2c\n   el0_svc+0x20/0x34\n   el0_sync_handler+0x80/0x17c\n   el0_sync+0x13c/0x140\n  SELinux: Context system_u:object_r:pssp_rsyslog_log_t:s0:c0 is\n           not valid (left unmapped).\n\nIt was found that within a critical section of spin_lock_irqsave in\nsidtab_context_to_sid(), convert_context() (hooked by\nsidtab_convert_params.func) might cause the process to sleep via\nallocating memory with GFP_KERNEL, which is problematic.\n\nAs Ondrej pointed out [1], convert_context()/sidtab_convert_params.func\nhas another caller sidtab_convert_tree(), which is okay with GFP_KERNEL.\nTherefore, fix this problem by adding a gfp_t argument for\nconvert_context()/sidtab_convert_params.func and pass GFP_KERNEL/_ATOMIC\nproperly in individual callers.\n\n[PM: wrap long BUG() output lines, tweak subject line]"
    }
  ],
  "lastModified": "2026-06-17T05:24:01.670",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}