| { |
| "containers": { |
| "cna": { |
| "providerMetadata": { |
| "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038" |
| }, |
| "descriptions": [ |
| { |
| "lang": "en", |
| "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing/timerlat: Drop interface_lock in stop_kthread()\n\nstop_kthread() is the offline callback for \"trace/osnoise:online\", since\ncommit 5bfbcd1ee57b (\"tracing/timerlat: Add interface_lock around clearing\nof kthread in stop_kthread()\"), the following ABBA deadlock scenario is\nintroduced:\n\nT1 | T2 [BP] | T3 [AP]\nosnoise_hotplug_workfn() | work_for_cpu_fn() | cpuhp_thread_fun()\n | _cpu_down() | osnoise_cpu_die()\n mutex_lock(&interface_lock) | | stop_kthread()\n | cpus_write_lock() | mutex_lock(&interface_lock)\n cpus_read_lock() | cpuhp_kick_ap() |\n\nAs the interface_lock here in just for protecting the \"kthread\" field of\nthe osn_var, use xchg() instead to fix this issue. Also use\nfor_each_online_cpu() back in stop_per_cpu_kthreads() as it can take\ncpu_read_lock() again." |
| } |
| ], |
| "affected": [ |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "unaffected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "kernel/trace/trace_osnoise.c" |
| ], |
| "versions": [ |
| { |
| "version": "b4fdabffae14cca2c80d99bd81f3f27239ac7f5e", |
| "lessThan": "a4a05ceffe8fad68b45de38fe2311bda619e76e2", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "4679272d5252720746fd9c5465352cbc5665f230", |
| "lessThan": "09cb44cc3d3df7ade2cebc939d6257a2fa8afc7a", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "5bfbcd1ee57b607fd29e4645c7f350dd385dd9ad", |
| "lessThan": "db8571a9a098086608c11a15856ff585789e67e8", |
| "status": "affected", |
| "versionType": "git" |
| }, |
| { |
| "version": "5bfbcd1ee57b607fd29e4645c7f350dd385dd9ad", |
| "lessThan": "b484a02c9cedf8703eff8f0756f94618004bd165", |
| "status": "affected", |
| "versionType": "git" |
| } |
| ] |
| }, |
| { |
| "product": "Linux", |
| "vendor": "Linux", |
| "defaultStatus": "affected", |
| "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", |
| "programFiles": [ |
| "kernel/trace/trace_osnoise.c" |
| ], |
| "versions": [ |
| { |
| "version": "6.11", |
| "status": "affected" |
| }, |
| { |
| "version": "0", |
| "lessThan": "6.11", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.6.55", |
| "lessThanOrEqual": "6.6.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.10.14", |
| "lessThanOrEqual": "6.10.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.11.3", |
| "lessThanOrEqual": "6.11.*", |
| "status": "unaffected", |
| "versionType": "semver" |
| }, |
| { |
| "version": "6.12", |
| "lessThanOrEqual": "*", |
| "status": "unaffected", |
| "versionType": "original_commit_for_fix" |
| } |
| ] |
| } |
| ], |
| "cpeApplicability": [ |
| { |
| "nodes": [ |
| { |
| "operator": "OR", |
| "negate": false, |
| "cpeMatch": [ |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.6.51", |
| "versionEndExcluding": "6.6.55" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.10.10", |
| "versionEndExcluding": "6.10.14" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.11", |
| "versionEndExcluding": "6.11.3" |
| }, |
| { |
| "vulnerable": true, |
| "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", |
| "versionStartIncluding": "6.11", |
| "versionEndExcluding": "6.12" |
| } |
| ] |
| } |
| ] |
| } |
| ], |
| "references": [ |
| { |
| "url": "https://git.kernel.org/stable/c/a4a05ceffe8fad68b45de38fe2311bda619e76e2" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/09cb44cc3d3df7ade2cebc939d6257a2fa8afc7a" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/db8571a9a098086608c11a15856ff585789e67e8" |
| }, |
| { |
| "url": "https://git.kernel.org/stable/c/b484a02c9cedf8703eff8f0756f94618004bd165" |
| } |
| ], |
| "title": "tracing/timerlat: Drop interface_lock in stop_kthread()", |
| "x_generator": { |
| "engine": "bippy-1.2.0" |
| } |
| } |
| }, |
| "cveMetadata": { |
| "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038", |
| "cveID": "CVE-2024-49976", |
| "requesterUserId": "gregkh@kernel.org", |
| "serial": "1", |
| "state": "PUBLISHED" |
| }, |
| "dataType": "CVE_RECORD", |
| "dataVersion": "5.0" |
| } |
