143 lines
6.8 KiB
JSON
143 lines
6.8 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-2026-46035",
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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": "2026-05-13T15:03:33.093Z",
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"datePublished": "2026-05-27T12:56:44.260Z",
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"dateUpdated": "2026-06-14T17:49:34.298Z"
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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": "2026-06-14T17:49:34.298Z"
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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\nmm/page_alloc: return NULL early from alloc_frozen_pages_nolock() in NMI on UP\n\nOn UP kernels (!CONFIG_SMP), spin_trylock() is a no-op that\nunconditionally succeeds even when the lock is already held. As a\nresult, alloc_frozen_pages_nolock() called from NMI context can\nre-enter rmqueue() and acquire the zone lock that the interrupted\ncontext is already holding, corrupting the freelists.\n\nWith CONFIG_DEBUG_SPINLOCK on UP, the following BUG is triggered with\nthe slub_kunit test module:\n\n BUG: spinlock trylock failure on UP on CPU#0, kunit_try_catch/243\n [...]\n Call Trace:\n <NMI>\n dump_stack_lvl+0x3f/0x60\n do_raw_spin_trylock+0x41/0x50\n _raw_spin_trylock+0x24/0x50\n rmqueue.isra.0+0x2a9/0xa70\n get_page_from_freelist+0xeb/0x450\n alloc_frozen_pages_nolock_noprof+0x111/0x1e0\n allocate_slab+0x42a/0x500\n ___slab_alloc+0xa7/0x4c0\n kmalloc_nolock_noprof+0x164/0x310\n [...]\n </NMI>\n\nFix this by returning NULL early when invoked from NMI on a UP kernel."
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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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"mm/page_alloc.c"
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],
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"versions": [
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{
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"version": "d7242af8643409aae32243450341ef25b28d8a8c",
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"lessThan": "05b4ed8bef30bba4f559c8d835e2dd20c48cf8a4",
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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": "d7242af8643409aae32243450341ef25b28d8a8c",
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"lessThan": "a6d57efeaae3f3b3656514f600eac96be713d90e",
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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": "d7242af8643409aae32243450341ef25b28d8a8c",
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"lessThan": "620b46ed6ae17c8438d889c8c0cfddab36a1476c",
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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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"mm/page_alloc.c"
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],
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"versions": [
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{
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"version": "6.18",
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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": "6.18",
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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": "6.18.27",
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"lessThanOrEqual": "6.18.*",
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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": "7.0.4",
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"lessThanOrEqual": "7.0.*",
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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": "7.1",
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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": "6.18",
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"versionEndExcluding": "6.18.27"
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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": "6.18",
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"versionEndExcluding": "7.0.4"
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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": "6.18",
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"versionEndExcluding": "7.1"
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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/05b4ed8bef30bba4f559c8d835e2dd20c48cf8a4"
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},
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{
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"url": "https://git.kernel.org/stable/c/a6d57efeaae3f3b3656514f600eac96be713d90e"
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},
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{
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"url": "https://git.kernel.org/stable/c/620b46ed6ae17c8438d889c8c0cfddab36a1476c"
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}
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],
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"title": "mm/page_alloc: return NULL early from alloc_frozen_pages_nolock() in NMI on UP",
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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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}
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} |