206 lines
10 KiB
JSON
206 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-2022-50771",
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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": "2025-12-24T13:02:21.546Z",
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"datePublished": "2025-12-24T13:06:00.412Z",
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"dateUpdated": "2026-05-11T19:25:13.504Z"
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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": "2026-05-11T19:25:13.504Z"
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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\nrcu: Fix __this_cpu_read() lockdep warning in rcu_force_quiescent_state()\n\nRunning rcutorture with non-zero fqs_duration module parameter in a\nkernel built with CONFIG_PREEMPTION=y results in the following splat:\n\nBUG: using __this_cpu_read() in preemptible [00000000]\ncode: rcu_torture_fqs/398\ncaller is __this_cpu_preempt_check+0x13/0x20\nCPU: 3 PID: 398 Comm: rcu_torture_fqs Not tainted 6.0.0-rc1-yoctodev-standard+\nCall Trace:\n<TASK>\ndump_stack_lvl+0x5b/0x86\ndump_stack+0x10/0x16\ncheck_preemption_disabled+0xe5/0xf0\n__this_cpu_preempt_check+0x13/0x20\nrcu_force_quiescent_state.part.0+0x1c/0x170\nrcu_force_quiescent_state+0x1e/0x30\nrcu_torture_fqs+0xca/0x160\n? rcu_torture_boost+0x430/0x430\nkthread+0x192/0x1d0\n? kthread_complete_and_exit+0x30/0x30\nret_from_fork+0x22/0x30\n</TASK>\n\nThe problem is that rcu_force_quiescent_state() uses __this_cpu_read()\nin preemptible code instead of the proper raw_cpu_read(). This commit\ntherefore changes __this_cpu_read() to raw_cpu_read()."
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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/rcu/tree.c"
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],
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"versions": [
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{
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"version": "d860d40327dde251d508a234fa00bd0d90fbb656",
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"lessThan": "3d92527a919edd1aa381bdd6c299dd75a8167396",
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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": "d860d40327dde251d508a234fa00bd0d90fbb656",
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"lessThan": "5a52380b8193cf8be6c4a6b94b86ef64ed80c0dc",
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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": "d860d40327dde251d508a234fa00bd0d90fbb656",
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"lessThan": "98a5b1265a36e9d843a51ddd6c9fa02da50d2c57",
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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": "d860d40327dde251d508a234fa00bd0d90fbb656",
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"lessThan": "a74af9b937707b42c3fd041aae1ed4ce2f337307",
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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": "d860d40327dde251d508a234fa00bd0d90fbb656",
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"lessThan": "80a3e7ab477b3655615fc1627c88c248d4ad28d9",
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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": "d860d40327dde251d508a234fa00bd0d90fbb656",
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"lessThan": "ceb1c8c9b8aa9199da46a0f29d2d5f08d9b44c15",
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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/rcu/tree.c"
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],
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"versions": [
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{
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"version": "3.17",
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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": "3.17",
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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": "5.4.229",
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"lessThanOrEqual": "5.4.*",
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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": "5.10.163",
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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": "5.15.86",
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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": "6.0.16",
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"lessThanOrEqual": "6.0.*",
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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": "6.1.2",
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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": "6.2",
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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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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "3.17",
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"versionEndExcluding": "5.4.229"
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},
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"vulnerable": true,
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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/3d92527a919edd1aa381bdd6c299dd75a8167396"
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},
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{
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"url": "https://git.kernel.org/stable/c/5a52380b8193cf8be6c4a6b94b86ef64ed80c0dc"
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},
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{
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"url": "https://git.kernel.org/stable/c/98a5b1265a36e9d843a51ddd6c9fa02da50d2c57"
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},
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{
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"url": "https://git.kernel.org/stable/c/a74af9b937707b42c3fd041aae1ed4ce2f337307"
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},
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{
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"url": "https://git.kernel.org/stable/c/80a3e7ab477b3655615fc1627c88c248d4ad28d9"
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},
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{
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"url": "https://git.kernel.org/stable/c/ceb1c8c9b8aa9199da46a0f29d2d5f08d9b44c15"
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}
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],
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"title": "rcu: Fix __this_cpu_read() lockdep warning in rcu_force_quiescent_state()",
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"x_generator": {
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} |