{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2025-40082", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2025-40082", "idYear": 2025, "status": "PUBLISHED", "publishedAt": "2025-10-28T11:48:45.975Z", "updatedAt": "2026-10-15T22:02:37.613Z", "importedAt": "2026-10-24T01:57:34.152Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "hfsplus: fix slab-out-of-bounds read in hfsplus_uni2asc()", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nhfsplus: fix slab-out-of-bounds read in hfsplus_uni2asc()\n\nBUG: KASAN: slab-out-of-bounds in hfsplus_uni2asc+0xa71/0xb90 fs/hfsplus/unicode.c:186\nRead of size 2 at addr ffff8880289ef218 by task syz.6.248/14290\n\nCPU: 0 UID: 0 PID: 14290 Comm: syz.6.248 Not tainted 6.16.4 #1 PREEMPT(full)\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\nCall Trace:\n \n __dump_stack lib/dump_stack.c:94 [inline]\n dump_stack_lvl+0x116/0x1b0 lib/dump_stack.c:120\n print_address_description mm/kasan/report.c:378 [inline]\n print_report+0xca/0x5f0 mm/kasan/report.c:482\n kasan_report+0xca/0x100 mm/kasan/report.c:595\n hfsplus_uni2asc+0xa71/0xb90 fs/hfsplus/unicode.c:186\n hfsplus_listxattr+0x5b6/0xbd0 fs/hfsplus/xattr.c:738\n vfs_listxattr+0xbe/0x140 fs/xattr.c:493\n listxattr+0xee/0x190 fs/xattr.c:924\n filename_listxattr fs/xattr.c:958 [inline]\n path_listxattrat+0x143/0x360 fs/xattr.c:988\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xcb/0x4c0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7fe0e9fae16d\nCode: 02 b8 ff ff ff ff c3 66 0f 1f 44 00 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007fe0eae67f98 EFLAGS: 00000246 ORIG_RAX: 00000000000000c3\nRAX: ffffffffffffffda RBX: 00007fe0ea205fa0 RCX: 00007fe0e9fae16d\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000200000000000\nRBP: 00007fe0ea0480f0 R08: 0000000000000000 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000\nR13: 00007fe0ea206038 R14: 00007fe0ea205fa0 R15: 00007fe0eae48000\n \n\nAllocated by task 14290:\n kasan_save_stack+0x24/0x50 mm/kasan/common.c:47\n kasan_save_track+0x14/0x30 mm/kasan/common.c:68\n poison_kmalloc_redzone mm/kasan/common.c:377 [inline]\n __kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:394\n kasan_kmalloc include/linux/kasan.h:260 [inline]\n __do_kmalloc_node mm/slub.c:4333 [inline]\n __kmalloc_noprof+0x219/0x540 mm/slub.c:4345\n kmalloc_noprof include/linux/slab.h:909 [inline]\n hfsplus_find_init+0x95/0x1f0 fs/hfsplus/bfind.c:21\n hfsplus_listxattr+0x331/0xbd0 fs/hfsplus/xattr.c:697\n vfs_listxattr+0xbe/0x140 fs/xattr.c:493\n listxattr+0xee/0x190 fs/xattr.c:924\n filename_listxattr fs/xattr.c:958 [inline]\n path_listxattrat+0x143/0x360 fs/xattr.c:988\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xcb/0x4c0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\n\nWhen hfsplus_uni2asc is called from hfsplus_listxattr,\nit actually passes in a struct hfsplus_attr_unistr*.\nThe size of the corresponding structure is different from that of hfsplus_unistr,\nso the previous fix (94458781aee6) is insufficient.\nThe pointer on the unicode buffer is still going beyond the allocated memory.\n\nThis patch introduces two warpper functions hfsplus_uni2asc_xattr_str and\nhfsplus_uni2asc_str to process two unicode buffers,\nstruct hfsplus_attr_unistr* and struct hfsplus_unistr* respectively.\nWhen ustrlen value is bigger than the allocated memory size,\nthe ustrlen value is limited to an safe size.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "ccf0ad56a779e6704c0b27f555dec847f50c7557", "status": "affected", "versionType": "git", "lessThan": "343fe375a8dd6ee51a193a1c233b999f5ea4d479" }, { "version": "13604b1d7e7b125fb428cddbec6b8d92baad25d5", "status": "affected", "versionType": "git", "lessThan": "782acde47e127c98a113726e2ff8024bd65c0454" }, { "version": "291bb5d931c6f3cd7227b913302a17be21cf53b0", "status": "affected", "versionType": "git", "lessThan": "c3db89ea1ed3d540eebe8f3c36e806fb75ee4a1e" }, { "version": "f7534cbfac0a9ffa4fa17cacc6e8b6446dae24ee", "status": "affected", "versionType": "git", "lessThan": "5b5228964619b180f366940505b77255b1a03929" }, { "version": "94458781aee6045bd3d0ad4b80b02886b9e2219b", "status": "affected", "versionType": "git", "lessThan": "857aefc70d4ae3b9bf1ae67434d27d0f79f80c9e" }, { "version": "94458781aee6045bd3d0ad4b80b02886b9e2219b", "status": "affected", "versionType": "git", "lessThan": "bea3e1d4467bcf292c8e54f080353d556d355e26" }, { "version": "73f7da507d787b489761a0fa280716f84fa32b2f", "status": "affected", "versionType": "git" }, { "version": "76a4c6636a69d69409aa253b049b1be717a539c5", "status": "affected", "versionType": "git" }, { "version": "6f93694bcbc2c2ab3e01cd8fba2f296faf34e6b9", "status": "affected", "versionType": "git" }, { "version": "1ca69007e52a73bd8b84b988b61b319816ca8b01", "status": "affected", "versionType": "git" }, { "version": "5.15.190", "status": "affected", "versionType": "semver", "lessThan": "5.15.200" }, { "version": "6.1.149", "status": "affected", "versionType": "semver", "lessThan": "6.1.163" }, { "version": "6.6.103", "status": "affected", "versionType": "semver", "lessThan": "6.6.124" }, { "version": "6.12.43", "status": "affected", "versionType": "semver", "lessThan": "6.12.70" }, { "version": "5.4.297", "status": "affected", "versionType": "semver", "lessThan": "5.5" }, { "version": "5.10.241", "status": "affected", "versionType": "semver", "lessThan": "5.11" }, { "version": "6.15.11", "status": "affected", "versionType": "semver", "lessThan": "6.16" }, { "version": "6.16.2", "status": "affected", "versionType": "semver", "lessThan": "6.17" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "6.17", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "6.17" }, { "version": "5.15.200", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "6.1.163", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.1.*" }, { "version": "6.6.124", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.6.*" }, { "version": "6.12.70", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.12.*" }, { "version": "6.17.3", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.17.*" }, { "version": "6.18", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }