{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2022-50262", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-09-15T13:58:00.974Z", "datePublished": "2025-09-15T14:20:58.578Z", "dateUpdated": "2026-08-15T12:23:15.406Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-15T12:23:15.406Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfs/ntfs3: Validate BOOT record_size\n\nWhen the NTFS BOOT record_size field < 0, it represents a\nshift value. However, there is no sanity check on the shift result\nand the sbi->record_bits calculation through blksize_bits() assumes\nthe size always > 256, which could lead to NPD while mounting a\nmalformed NTFS image.\n\n[ 318.675159] BUG: kernel NULL pointer dereference, address: 0000000000000158\n[ 318.675682] #PF: supervisor read access in kernel mode\n[ 318.675869] #PF: error_code(0x0000) - not-present page\n[ 318.676246] PGD 0 P4D 0\n[ 318.676502] Oops: 0000 [#1] PREEMPT SMP NOPTI\n[ 318.676934] CPU: 0 PID: 259 Comm: mount Not tainted 5.19.0 #5\n[ 318.677289] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014\n[ 318.678136] RIP: 0010:ni_find_attr+0x2d/0x1c0\n[ 318.678656] Code: 89 ca 4d 89 c7 41 56 41 55 41 54 41 89 cc 55 48 89 fd 53 48 89 d3 48 83 ec 20 65 48 8b 04 25 28 00 00 00 48 89 44 24 180\n[ 318.679848] RSP: 0018:ffffa6c8c0297bd8 EFLAGS: 00000246\n[ 318.680104] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000080\n[ 318.680790] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\n[ 318.681679] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000\n[ 318.682577] R10: 0000000000000000 R11: 0000000000000005 R12: 0000000000000080\n[ 318.683015] R13: ffff8d5582e68400 R14: 0000000000000100 R15: 0000000000000000\n[ 318.683618] FS: 00007fd9e1c81e40(0000) GS:ffff8d55fdc00000(0000) knlGS:0000000000000000\n[ 318.684280] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 318.684651] CR2: 0000000000000158 CR3: 0000000002e1a000 CR4: 00000000000006f0\n[ 318.685623] Call Trace:\n[ 318.686607] \n[ 318.686872] ? ntfs_alloc_inode+0x1a/0x60\n[ 318.687235] attr_load_runs_vcn+0x2b/0xa0\n[ 318.687468] mi_read+0xbb/0x250\n[ 318.687576] ntfs_iget5+0x114/0xd90\n[ 318.687750] ntfs_fill_super+0x588/0x11b0\n[ 318.687953] ? put_ntfs+0x130/0x130\n[ 318.688065] ? snprintf+0x49/0x70\n[ 318.688164] ? put_ntfs+0x130/0x130\n[ 318.688256] get_tree_bdev+0x16a/0x260\n[ 318.688407] vfs_get_tree+0x20/0xb0\n[ 318.688519] path_mount+0x2dc/0x9b0\n[ 318.688877] do_mount+0x74/0x90\n[ 318.689142] __x64_sys_mount+0x89/0xd0\n[ 318.689636] do_syscall_64+0x3b/0x90\n[ 318.689998] entry_SYSCALL_64_after_hwframe+0x63/0xcd\n[ 318.690318] RIP: 0033:0x7fd9e133c48a\n[ 318.690687] 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[ 318.691357] RSP: 002b:00007ffd374406c8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5\n[ 318.691632] RAX: ffffffffffffffda RBX: 0000564d0b051080 RCX: 00007fd9e133c48a\n[ 318.691920] RDX: 0000564d0b051280 RSI: 0000564d0b051300 RDI: 0000564d0b0596a0\n[ 318.692123] RBP: 0000000000000000 R08: 0000564d0b0512a0 R09: 0000000000000020\n[ 318.692349] R10: 00000000c0ed0000 R11: 0000000000000202 R12: 0000564d0b0596a0\n[ 318.692673] R13: 0000564d0b051280 R14: 0000000000000000 R15: 00000000ffffffff\n[ 318.693007] \n[ 318.693271] Modules linked in:\n[ 318.693614] CR2: 0000000000000158\n[ 318.694446] ---[ end trace 0000000000000000 ]---\n[ 318.694779] RIP: 0010:ni_find_attr+0x2d/0x1c0\n[ 318.694952] Code: 89 ca 4d 89 c7 41 56 41 55 41 54 41 89 cc 55 48 89 fd 53 48 89 d3 48 83 ec 20 65 48 8b 04 25 28 00 00 00 48 89 44 24 180\n[ 318.696042] RSP: 0018:ffffa6c8c0297bd8 EFLAGS: 00000246\n[ 318.696531] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000080\n[ 318.698114] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\n[ 318.699286] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000\n[ 318.699795] R10: 0000000000000000 R11: 0000000000000005 R12: 0000000000000080\n[ 318.700236] R13: ffff8d5582e68400 R14: 0000000000000100 R15: 0000000000000000\n[ 318.700973] FS: 00007fd9e1c81e40(0000) GS:ffff8d55fdc00000(0000) knlGS:0000000000000000\n[\n---truncated---" } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "fs/ntfs3/super.c" ], "versions": [ { "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "af7a195deae349f15baa765d000a5188920d61dd", "status": "affected", "versionType": "git" }, { "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "8702e0dc987014f6d77740b693340f91344fd0ae", "status": "affected", "versionType": "git" }, { "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "db91a9c59162a9c56792ded88160442c0a2dabd5", "status": "affected", "versionType": "git" }, { "version": "82cae269cfa953032fbb8980a7d554d60fb00b17", "lessThan": "0b66046266690454dc04e6307bcff4a5605b42a1", "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/ntfs3/super.c" ], "versions": [ { "version": "5.15", "status": "affected" }, { "version": "0", "lessThan": "5.15", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.87", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.0.17", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.3", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.2", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "5.15.87" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.0.17" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.1.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15", "versionEndExcluding": "6.2" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/af7a195deae349f15baa765d000a5188920d61dd" }, { "url": "https://git.kernel.org/stable/c/8702e0dc987014f6d77740b693340f91344fd0ae" }, { "url": "https://git.kernel.org/stable/c/db91a9c59162a9c56792ded88160442c0a2dabd5" }, { "url": "https://git.kernel.org/stable/c/0b66046266690454dc04e6307bcff4a5605b42a1" } ], "title": "fs/ntfs3: Validate BOOT record_size", "x_generator": { "engine": "bippy-1.2.0" } } } }