234 lines
12 KiB
JSON
234 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-2026-99103",
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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": "2026-09-25T10:25:14.391Z",
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"datePublished": "2026-10-28T10:34:22.945Z",
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"dateUpdated": "2026-10-30T12:41:45.076Z"
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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": "2026-10-30T12:41:45.076Z"
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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\nworkqueue: Fix unbound pool lifetime for pending pwqs\n\nKASAN reports a use-after-free of an unbound worker_pool in\nnode_activate_pending_pwq():\n\n BUG: KASAN: slab-use-after-free in _raw_spin_trylock+0x6d/0x120\n Read of size 4 at addr ffff8880089ce000 by task kworker/u22:0/318\n\n CPU: 1 UID: 0 PID: 318 Comm: kworker/u22:0 Not tainted 7.2.0 #1 PREEMPT(lazy)\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014\n Workqueue: 0x0 (flush-8:0)\n Call Trace:\n <TASK>\n dump_stack_lvl+0x53/0x70\n print_report+0xce/0x610\n kasan_report+0xce/0x100\n _raw_spin_trylock+0x6d/0x120\n pwq_dec_nr_in_flight+0x4b4/0xcb0\n process_one_work+0x921/0x11a0\n worker_thread+0x4d0/0xd20\n kthread+0x2de/0x3c0\n ret_from_fork+0x3aa/0x620\n ret_from_fork_asm+0x1a/0x30\n </TASK>\n\n Allocated by task 311:\n alloc_pwq+0x439/0xca0\n apply_wqattrs_prepare+0x75e/0xd10\n apply_workqueue_attrs_locked+0x44/0xa0\n wq_nice_store+0x350/0x450\n\n Freed by task 0:\n kfree+0x127/0x3b0\n rcu_core+0x523/0x1780\n handle_softirqs+0x1b3/0x610\n\n Last potentially related work creation:\n put_unbound_pool+0x3f3/0x7d0\n pwq_release_workfn+0x494/0x8e0\n kthread_worker_fn+0x1ff/0x790\n\nCanceling the last inactive work skips pwq_dec_nr_active(), so an empty\npwq can remain on pending_pwqs when its refcnt reaches zero.\npwq_release_workfn() currently puts the pool before removing that pwq.\nIf this drops the last pool reference, the pool can be RCU-freed while\nthe pwq remains reachable, and node_activate_pending_pwq() may trylock\nthe freed pool->lock.\n\nRemove the pwq from pending_pwqs before putting the pool."
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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/workqueue.c"
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],
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"versions": [
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{
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"version": "5a70baec2294e8a7d0fcc4558741c23e752dad5c",
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"lessThan": "6741dd3fd38e47c08bc39d11ef5fa141fa6d0441",
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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": "843288afd3cc6f3342659c6cf81fc47684d25563",
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"lessThan": "9f5d5aef3072a33c6f9bfb954bb0cba1c2541849",
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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": "5797b1c18919cd9c289ded7954383e499f729ce0",
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"lessThan": "390b9542fe670b8936738140ef9f349df6adeab6",
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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": "5797b1c18919cd9c289ded7954383e499f729ce0",
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"lessThan": "f320b85c90fe5fc9d4d06badd450518323a94a7f",
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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": "5797b1c18919cd9c289ded7954383e499f729ce0",
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"lessThan": "3d2ef2b9f4c084ab498494d26495a82f7e15407b",
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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": "5797b1c18919cd9c289ded7954383e499f729ce0",
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"lessThan": "cf9c8aaea0d47410df8708bec195889f3a85cd3c",
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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": "fc67aebe34f22632ccb22faea48cc4d3134620a2",
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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": "6.6.23",
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"lessThan": "6.6.25",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "6.8.2",
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"lessThan": "6.8.4",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "6.7.11",
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"lessThan": "6.8",
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"status": "affected",
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"versionType": "semver"
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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/workqueue.c"
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],
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"versions": [
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{
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"version": "6.9",
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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": "6.9",
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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": "6.6.25",
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"lessThanOrEqual": "6.6.*",
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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": "6.8.4",
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"lessThanOrEqual": "6.8.*",
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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": "6.12.115",
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"lessThanOrEqual": "6.12.*",
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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": "6.18.59",
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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": "7.2.13",
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"lessThanOrEqual": "7.2.*",
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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": "7.3",
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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": "6.6.23",
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"versionEndExcluding": "6.6.25"
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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": "6.8.2",
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"versionEndExcluding": "6.8.4"
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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": "6.9",
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"versionEndExcluding": "6.12.115"
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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": "6.9",
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"versionEndExcluding": "6.18.59"
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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": "6.9",
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"versionEndExcluding": "7.2.13"
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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": "6.9",
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"versionEndExcluding": "7.3"
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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": "6.7.11"
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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/6741dd3fd38e47c08bc39d11ef5fa141fa6d0441"
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},
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{
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"url": "https://git.kernel.org/stable/c/9f5d5aef3072a33c6f9bfb954bb0cba1c2541849"
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},
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{
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"url": "https://git.kernel.org/stable/c/390b9542fe670b8936738140ef9f349df6adeab6"
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},
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{
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"url": "https://git.kernel.org/stable/c/f320b85c90fe5fc9d4d06badd450518323a94a7f"
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},
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{
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"url": "https://git.kernel.org/stable/c/3d2ef2b9f4c084ab498494d26495a82f7e15407b"
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},
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{
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"url": "https://git.kernel.org/stable/c/cf9c8aaea0d47410df8708bec195889f3a85cd3c"
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}
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],
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"title": "workqueue: Fix unbound pool lifetime for pending pwqs",
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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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} |