{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-74426",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-74426"
  ],
  "published": "2026-08-15T06:04:33Z",
  "summary": "afs: fix NULL pointer dereference in afs_get_tree()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nafs: fix NULL pointer dereference in afs_get_tree()\n\nafs_alloc_sbi() uses kzalloc for memory allocation. And, if\nctx->dyn_root is not null, as->cell and as->volume are null.\nIn trace_afs_get_tree() they are dereferenced.\n\nKASAN error message:\n\nKASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]\nCPU: 2 PID: 18478 Comm: syz-executor.7 Not tainted 5.10.246-syzkaller #0\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1\n04/01/2014\nRIP: 0010:perf_trace_afs_get_tree+0x1d9/0x550\ninclude/trace/events/afs.h:1365\n\nCall Trace:\ntrace_afs_get_tree include/trace/events/afs.h:1365 [inline]\nafs_get_tree+0x922/0x1350 fs/afs/super.c:599\nvfs_get_tree+0x8e/0x300 fs/super.c:1572\ndo_new_mount fs/namespace.c:3011 [inline]\npath_mount+0x14a5/0x2220 fs/namespace.c:3341\ndo_mount fs/namespace.c:3354 [inline]\n__do_sys_mount fs/namespace.c:3562 [inline]\n__se_sys_mount fs/namespace.c:3539 [inline]\n__x64_sys_mount+0x283/0x300 fs/namespace.c:3539\n do_syscall_64+0x33/0x50 arch/x86/entry/common.c:46\nentry_SYSCALL_64_after_hwframe+0x67/0xd1\n\nFound by Linux Verification Center (linuxtesting.org) with Syzkaller.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": "6.1.178",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-74426"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/67fb48c4a0874953212321cd5d57fdb4900dbc31"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d648cc2069eb081707c061849046d909f57c78b1"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/d5b17474feed3c30991f07affa2473adbad95055"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/867b3ea146a041023bfcd258e6db516b1bb28f19"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ea19edf71721cd42f923e3c70f4ff995b422fe3b"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/23b3d457d8387bcb2a61063a9e520063ada9335f"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/70b2842734d831c908474779bb8a76daf55f782c"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0b70716081c6462be9b2928ad736d0d527b09678"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-17T05:24:08Z"
  }
}