287 lines
14 KiB
JSON
287 lines
14 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-2026-99244",
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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": "2026-11-03T11:15:14.715Z",
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"dateUpdated": "2026-11-03T19:13:09.510Z"
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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": "2026-11-03T19:13:09.510Z"
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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: prevent TIF_NOTIFY_SIGNAL from interrupting the reaper\n\nSince commit 7fea700e04bd (\"zap_pid_ns_processes: clear\nTIF_NOTIFY_SIGNAL along with TIF_SIGPENDING\") zap_pid_ns_processes()\nclears TIF_NOTIFY_SIGNAL before every kernel_wait4() call. Otherwise\nkernel_wait4() doesn't sleep and returns -ERESTARTSYS if\nsignal_pending() is true and the reaper busy-waits.\n\nBut clearing TIF_NOTIFY_SIGNAL doesn't fix it. It can get raised again.\nFor example, klp_send_signals() sets it raw against any task that hasn't\ntransitioned yet. And it keeps sending it until the livepatch finishes.\n\nThe sleep loop waiting for pid_allocated to drop has the same problem\nand it doesn't even clear anything. So a schedule() in\nTASK_INTERRUPTIBLE returns immediately.\n\nUse a no_notify_signal guard. signal_pending() will ignore\nTIF_NOTIFY_SIGNAL and the pid namespace reaper sleeps until a child\nexits or free_pid() wakes it."
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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/pid_namespace.c"
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],
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"versions": [
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{
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"version": "edd2754a62bee8d97b4808a15de024f66a1ddccf",
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"lessThan": "2c20ace1698d03a23467351be1d281e89b36ade3",
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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": "3466abafa9f4f81a869da828e52a12f693175ec2",
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"lessThan": "9ab0324f4868eeb20c63f063a1e5bc01d5539212",
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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": "7fea700e04bd3f424c2d836e98425782f97b494e",
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"lessThan": "30b274508c743f243c82904954c4e416d7143d4c",
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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": "7fea700e04bd3f424c2d836e98425782f97b494e",
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"lessThan": "70178691c467c8f9f722765299fd8524c3121a35",
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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": "7fea700e04bd3f424c2d836e98425782f97b494e",
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"lessThan": "3d15ac36ce174477efa5365e424dbd47950fd2b9",
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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": "7fea700e04bd3f424c2d836e98425782f97b494e",
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"lessThan": "f46cd8241d9b83f2279cc0db3e9d3e181b548a59",
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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": "7fea700e04bd3f424c2d836e98425782f97b494e",
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"lessThan": "5c0985dd3c32fc2bbd0e8beaf13cf52cd97376a2",
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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": "82c7acf9a12c9b4e4b0aba531de82b4e39a345c8",
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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": "8e69e589f233ca2c9631f5af2b94f95dfc2ba804",
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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": "09ab5b424b17cfe633db58bb2f9edbaf9484cf20",
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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": "6.1.95",
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"lessThan": "6.1.191",
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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": "6.6.35",
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"lessThan": "6.6.161",
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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": "5.10.221",
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"lessThan": "5.11",
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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": "5.15.162",
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"lessThan": "5.16",
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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": "6.9.6",
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"lessThan": "6.10",
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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/pid_namespace.c"
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],
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"versions": [
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{
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"version": "6.10",
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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": "6.10",
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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": "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": "6.18.60",
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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": "7.2.14",
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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": "7.3.1",
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"lessThanOrEqual": "7.3.*",
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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": "7.4-rc1",
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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": "6.1.95",
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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": "6.6.35",
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"versionEndExcluding": "6.6.161"
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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": "6.10",
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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": "6.10",
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"versionEndExcluding": "6.18.60"
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},
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{
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.10",
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"versionEndExcluding": "7.2.14"
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "6.10",
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"versionEndExcluding": "7.4-rc1"
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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": "5.10.221"
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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": "5.15.162"
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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": "6.9.6"
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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/2c20ace1698d03a23467351be1d281e89b36ade3"
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},
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{
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"url": "https://git.kernel.org/stable/c/9ab0324f4868eeb20c63f063a1e5bc01d5539212"
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},
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{
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"url": "https://git.kernel.org/stable/c/30b274508c743f243c82904954c4e416d7143d4c"
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},
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{
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"url": "https://git.kernel.org/stable/c/70178691c467c8f9f722765299fd8524c3121a35"
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},
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{
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"url": "https://git.kernel.org/stable/c/3d15ac36ce174477efa5365e424dbd47950fd2b9"
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},
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{
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"url": "https://git.kernel.org/stable/c/f46cd8241d9b83f2279cc0db3e9d3e181b548a59"
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},
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{
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"url": "https://git.kernel.org/stable/c/5c0985dd3c32fc2bbd0e8beaf13cf52cd97376a2"
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}
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],
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"title": "pid_namespace: prevent TIF_NOTIFY_SIGNAL from interrupting the reaper",
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"x_generator": {
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"engine": "bippy-1.2.0"
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} |