219 lines
12 KiB
JSON
219 lines
12 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2022-49402",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-02-26T02:08:31.565Z",
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"datePublished": "2025-02-26T02:12:29.070Z",
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"dateUpdated": "2026-11-05T19:49:39.212Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-05-11T18:59:03.812Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nftrace: Clean up hash direct_functions on register failures\n\nWe see the following GPF when register_ftrace_direct fails:\n\n[ ] general protection fault, probably for non-canonical address \\\n 0x200000000000010: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC PTI\n[...]\n[ ] RIP: 0010:ftrace_find_rec_direct+0x53/0x70\n[ ] Code: 48 c1 e0 03 48 03 42 08 48 8b 10 31 c0 48 85 d2 74 [...]\n[ ] RSP: 0018:ffffc9000138bc10 EFLAGS: 00010206\n[ ] RAX: 0000000000000000 RBX: ffffffff813e0df0 RCX: 000000000000003b\n[ ] RDX: 0200000000000000 RSI: 000000000000000c RDI: ffffffff813e0df0\n[ ] RBP: ffffffffa00a3000 R08: ffffffff81180ce0 R09: 0000000000000001\n[ ] R10: ffffc9000138bc18 R11: 0000000000000001 R12: ffffffff813e0df0\n[ ] R13: ffffffff813e0df0 R14: ffff888171b56400 R15: 0000000000000000\n[ ] FS: 00007fa9420c7780(0000) GS:ffff888ff6a00000(0000) knlGS:000000000\n[ ] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ ] CR2: 000000000770d000 CR3: 0000000107d50003 CR4: 0000000000370ee0\n[ ] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n[ ] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n[ ] Call Trace:\n[ ] <TASK>\n[ ] register_ftrace_direct+0x54/0x290\n[ ] ? render_sigset_t+0xa0/0xa0\n[ ] bpf_trampoline_update+0x3f5/0x4a0\n[ ] ? 0xffffffffa00a3000\n[ ] bpf_trampoline_link_prog+0xa9/0x140\n[ ] bpf_tracing_prog_attach+0x1dc/0x450\n[ ] bpf_raw_tracepoint_open+0x9a/0x1e0\n[ ] ? find_held_lock+0x2d/0x90\n[ ] ? lock_release+0x150/0x430\n[ ] __sys_bpf+0xbd6/0x2700\n[ ] ? lock_is_held_type+0xd8/0x130\n[ ] __x64_sys_bpf+0x1c/0x20\n[ ] do_syscall_64+0x3a/0x80\n[ ] entry_SYSCALL_64_after_hwframe+0x44/0xae\n[ ] RIP: 0033:0x7fa9421defa9\n[ ] Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 9 f8 [...]\n[ ] RSP: 002b:00007ffed743bd78 EFLAGS: 00000246 ORIG_RAX: 0000000000000141\n[ ] RAX: ffffffffffffffda RBX: 00000000069d2480 RCX: 00007fa9421defa9\n[ ] RDX: 0000000000000078 RSI: 00007ffed743bd80 RDI: 0000000000000011\n[ ] RBP: 00007ffed743be00 R08: 0000000000bb7270 R09: 0000000000000000\n[ ] R10: 00000000069da210 R11: 0000000000000246 R12: 0000000000000001\n[ ] R13: 00007ffed743c4b0 R14: 00000000069d2480 R15: 0000000000000001\n[ ] </TASK>\n[ ] Modules linked in: klp_vm(OK)\n[ ] ---[ end trace 0000000000000000 ]---\n\nOne way to trigger this is:\n 1. load a livepatch that patches kernel function xxx;\n 2. run bpftrace -e 'kfunc:xxx {}', this will fail (expected for now);\n 3. repeat #2 => gpf.\n\nThis is because the entry is added to direct_functions, but not removed.\nFix this by remove the entry from direct_functions when\nregister_ftrace_direct fails.\n\nAlso remove the last trailing space from ftrace.c, so we don't have to\nworry about it anymore."
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"kernel/trace/ftrace.c"
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],
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"versions": [
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{
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"version": "763e34e74bb7d5c316015e2e39fcc8520bfd071c",
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"lessThan": "82c888e51c2176a06f8b4541cf748ee81aac6e7e",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "763e34e74bb7d5c316015e2e39fcc8520bfd071c",
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"lessThan": "cae2978d6907ef2c08b9b15f704e783f7c284713",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "763e34e74bb7d5c316015e2e39fcc8520bfd071c",
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"lessThan": "805e87af946d8d2954171361e64d143ff37a441b",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "763e34e74bb7d5c316015e2e39fcc8520bfd071c",
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"lessThan": "a0392833a178cf109a57c2a9d4d531bdfc6cd98f",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "763e34e74bb7d5c316015e2e39fcc8520bfd071c",
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"lessThan": "7d54c15cb89a29a5f59e5ffc9ee62e6591769ef1",
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"status": "affected",
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"versionType": "git"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"kernel/trace/ftrace.c"
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],
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"versions": [
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{
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"version": "5.5",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "5.5",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.121",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.46",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.17.14",
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"lessThanOrEqual": "5.17.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.18.3",
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"lessThanOrEqual": "5.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.19",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.5",
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"versionEndExcluding": "5.10.121"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.5",
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"versionEndExcluding": "5.15.46"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.5",
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"versionEndExcluding": "5.17.14"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.5",
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"versionEndExcluding": "5.18.3"
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},
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "5.5",
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"versionEndExcluding": "5.19"
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}
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]
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}
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]
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}
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/82c888e51c2176a06f8b4541cf748ee81aac6e7e"
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},
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{
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"url": "https://git.kernel.org/stable/c/cae2978d6907ef2c08b9b15f704e783f7c284713"
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},
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{
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"url": "https://git.kernel.org/stable/c/805e87af946d8d2954171361e64d143ff37a441b"
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},
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{
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"url": "https://git.kernel.org/stable/c/a0392833a178cf109a57c2a9d4d531bdfc6cd98f"
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},
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{
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"url": "https://git.kernel.org/stable/c/7d54c15cb89a29a5f59e5ffc9ee62e6591769ef1"
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}
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],
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"title": "ftrace: Clean up hash direct_functions on register failures",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2022-49402",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2026-11-05T19:45:23.106164Z"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-11-05T19:49:39.212Z"
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}
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}
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]
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}
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} |