{"id":"CVE-2022-50507","url":"https://www.cyber-defence.io/tools/cve/CVE-2022-50507","generatedAt":"2026-10-27T21:48:12.127Z","title":"In the Linux kernel, the following vulnerability has been resolved: fs/ntfs3: Validate data run offset This adds sanity checks for data run offset.","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: Validate data run offset\n\nThis adds sanity checks for data run offset. We should make sure data\nrun offset is legit before trying to unpack them, otherwise we may\nencounter use-after-free or some unexpected memory access behaviors.\n\n[   82.940342] BUG: KASAN: use-after-free in run_unpack+0x2e3/0x570\n[   82.941180] Read of size 1 at addr ffff888008a8487f by task mount/240\n[   82.941670]\n[   82.942069] CPU: 0 PID: 240 Comm: mount Not tainted 5.19.0+ #15\n[   82.942482] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014\n[   82.943720] Call Trace:\n[   82.944204]  <TASK>\n[   82.944471]  dump_stack_lvl+0x49/0x63\n[   82.944908]  print_report.cold+0xf5/0x67b\n[   82.945141]  ? __wait_on_bit+0x106/0x120\n[   82.945750]  ? run_unpack+0x2e3/0x570\n[   82.946626]  kasan_report+0xa7/0x120\n[   82.947046]  ? run_unpack+0x2e3/0x570\n[   82.947280]  __asan_load1+0x51/0x60\n[   82.947483]  run_unpack+0x2e3/0x570\n[   82.947709]  ? memcpy+0x4e/0x70\n[   82.947927]  ? run_pack+0x7a0/0x7a0\n[   82.948158]  run_unpack_ex+0xad/0x3f0\n[   82.948399]  ? mi_enum_attr+0x14a/0x200\n[   82.948717]  ? run_unpack+0x570/0x570\n[   82.949072]  ? ni_enum_attr_ex+0x1b2/0x1c0\n[   82.949332]  ? ni_fname_type.part.0+0xd0/0xd0\n[   82.949611]  ? mi_read+0x262/0x2c0\n[   82.949970]  ? ntfs_cmp_names_cpu+0x125/0x180\n[   82.950249]  ntfs_iget5+0x632/0x1870\n[   82.950621]  ? ntfs_get_block_bmap+0x70/0x70\n[   82.951192]  ? evict+0x223/0x280\n[   82.951525]  ? iput.part.0+0x286/0x320\n[   82.951969]  ntfs_fill_super+0x1321/0x1e20\n[   82.952436]  ? put_ntfs+0x1d0/0x1d0\n[   82.952822]  ? vsprintf+0x20/0x20\n[   82.953188]  ? mutex_unlock+0x81/0xd0\n[   82.953379]  ? set_blocksize+0x95/0x150\n[   82.954001]  get_tree_bdev+0x232/0x370\n[   82.954438]  ? put_ntfs+0x1d0/0x1d0\n[   82.954700]  ntfs_fs_get_tree+0x15/0x20\n[   82.955049]  vfs_get_tree+0x4c/0x130\n[   82.955292]  path_mount+0x645/0xfd0\n[   82.955615]  ? putname+0x80/0xa0\n[   82.955955]  ? finish_automount+0x2e0/0x2e0\n[   82.956310]  ? kmem_cache_free+0x110/0x390\n[   82.956723]  ? putname+0x80/0xa0\n[   82.957023]  do_mount+0xd6/0xf0\n[   82.957411]  ? path_mount+0xfd0/0xfd0\n[   82.957638]  ? __kasan_check_write+0x14/0x20\n[   82.957948]  __x64_sys_mount+0xca/0x110\n[   82.958310]  do_syscall_64+0x3b/0x90\n[   82.958719]  entry_SYSCALL_64_after_hwframe+0x63/0xcd\n[   82.959341] RIP: 0033:0x7fd0d1ce948a\n[   82.960193] Code: 48 8b 0d 11 fa 2a 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 008\n[   82.961532] RSP: 002b:00007ffe59ff69a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5\n[   82.962527] RAX: ffffffffffffffda RBX: 0000564dcc107060 RCX: 00007fd0d1ce948a\n[   82.963266] RDX: 0000564dcc107260 RSI: 0000564dcc1072e0 RDI: 0000564dcc10fce0\n[   82.963686] RBP: 0000000000000000 R08: 0000564dcc107280 R09: 0000000000000020\n[   82.964272] R10: 00000000c0ed0000 R11: 0000000000000202 R12: 0000564dcc10fce0\n[   82.964785] R13: 0000564dcc107260 R14: 0000000000000000 R15: 00000000ffffffff","published":"2025-10-04T16:15:48.000Z","lastModified":"2026-08-15T13:17:38.000Z","status":"Modified","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":7.8,"severity":"HIGH","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-416"],"affected":["linux/linux kernel"],"epss":{"score":0.00165,"percentile":0.05718,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.17%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/6db620863f8528ed9a9aa5ad323b26554a17881d","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/9173b89c16a603d73c434b695fe2a7a13491300f","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/de5e0955248ff90a2ae91e7f5c108392b52152d0","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e0455361d3068066a91fe18282b751925d7b5ee7","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-50507","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}