208 lines
10 KiB
JSON
208 lines
10 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-2026-99249",
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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": "2026-09-25T10:25:14.403Z",
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"datePublished": "2026-11-03T11:18:26.800Z",
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"dateUpdated": "2026-11-03T11:18:26.800Z"
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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": "2026-11-03T11:18:26.800Z"
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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\npid_namespace: make zap_pid_ns_processes() freezable\n\nWhen the init of a pid namespace exits, zap_pid_ns_processes() waits\nuntil all other pids in the namespace are freed. A tracer outside the\nnamespace that does not reap its traced zombies keeps those pids\nallocated, so this wait has no upper bound, and while it lasts every\nsuspend attempt fails:\n\n Freezing user space processes failed after 20.006 seconds (2 tasks refusing to freeze, wq_busy=0):\n\nNeither wait is freezable. The first loop sleeps in do_wait(), which\nreturns -ERESTARTSYS on the freezer's fake signal; the loop then clears\nTIF_SIGPENDING and waits again without ever freezing. The final loop\nsleeps in TASK_INTERRUPTIBLE, and since nothing clears TIF_SIGPENDING\nthere, schedule() returns immediately after the first freeze attempt\nand the task spins until the wait ends.\n\nSleep in TASK_INTERRUPTIBLE | TASK_FREEZABLE in do_wait(), so that the\nfreezer can freeze tasks waiting there directly, and in TASK_IDLE |\nTASK_FREEZABLE in the final loop, like coredump_task_exit() does.\n\nThis was hit with Chromium-based browsers: crashpad ptrace-attaches the\nthreads of a crashed renderer, which is a pid namespace init, and does\nnot reap those killed during the dump."
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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/exit.c",
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"kernel/pid_namespace.c"
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],
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"versions": [
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{
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"version": "3eb07c8c8adb6f0572baba844ba2d9e501654316",
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"lessThan": "064a6761d6f6ac55d090d3eaca649577ee736713",
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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": "3eb07c8c8adb6f0572baba844ba2d9e501654316",
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"lessThan": "e8dafad7de9ede813af2d48cc04b7c88fef16682",
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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": "3eb07c8c8adb6f0572baba844ba2d9e501654316",
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"lessThan": "4b47107f1a80c809c80093e872bcaccdbae13db4",
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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": "3eb07c8c8adb6f0572baba844ba2d9e501654316",
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"lessThan": "2e10b8a74f55b5aae33db105d3e2d3ae759c865a",
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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": "3eb07c8c8adb6f0572baba844ba2d9e501654316",
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"lessThan": "7deb5770840339fe88755bf27b92f74edc26ee87",
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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": "3eb07c8c8adb6f0572baba844ba2d9e501654316",
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"lessThan": "81933038f5e273d17ed22792f906889393b204c5",
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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/exit.c",
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"kernel/pid_namespace.c"
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],
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"versions": [
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{
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"version": "2.6.24",
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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": "2.6.24",
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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": "6.1.191",
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"lessThanOrEqual": "6.1.*",
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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": "6.6.161",
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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": "6.12.115",
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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": "2.6.24",
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"versionEndExcluding": "6.1.191"
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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": "2.6.24",
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"versionEndExcluding": "6.6.161"
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.24",
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"versionEndExcluding": "6.12.115"
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "2.6.24",
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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": "2.6.24",
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"versionEndExcluding": "7.2.13"
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"versionStartIncluding": "2.6.24",
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"versionEndExcluding": "7.3"
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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/064a6761d6f6ac55d090d3eaca649577ee736713"
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},
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{
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"url": "https://git.kernel.org/stable/c/e8dafad7de9ede813af2d48cc04b7c88fef16682"
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},
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{
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"url": "https://git.kernel.org/stable/c/4b47107f1a80c809c80093e872bcaccdbae13db4"
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},
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{
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"url": "https://git.kernel.org/stable/c/2e10b8a74f55b5aae33db105d3e2d3ae759c865a"
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},
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{
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"url": "https://git.kernel.org/stable/c/7deb5770840339fe88755bf27b92f74edc26ee87"
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},
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{
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"url": "https://git.kernel.org/stable/c/81933038f5e273d17ed22792f906889393b204c5"
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}
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],
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"title": "pid_namespace: make zap_pid_ns_processes() freezable",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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} |