{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2023-54211", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-30T12:06:44.500Z", "datePublished": "2025-12-30T12:11:09.356Z", "dateUpdated": "2026-05-11T19:57:37.075Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-05-11T19:57:37.075Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix warning in trace_buffered_event_disable()\n\nWarning happened in trace_buffered_event_disable() at\n WARN_ON_ONCE(!trace_buffered_event_ref)\n\n Call Trace:\n ? __warn+0xa5/0x1b0\n ? trace_buffered_event_disable+0x189/0x1b0\n __ftrace_event_enable_disable+0x19e/0x3e0\n free_probe_data+0x3b/0xa0\n unregister_ftrace_function_probe_func+0x6b8/0x800\n event_enable_func+0x2f0/0x3d0\n ftrace_process_regex.isra.0+0x12d/0x1b0\n ftrace_filter_write+0xe6/0x140\n vfs_write+0x1c9/0x6f0\n [...]\n\nThe cause of the warning is in __ftrace_event_enable_disable(),\ntrace_buffered_event_enable() was called once while\ntrace_buffered_event_disable() was called twice.\nReproduction script show as below, for analysis, see the comments:\n ```\n #!/bin/bash\n\n cd /sys/kernel/tracing/\n\n # 1. Register a 'disable_event' command, then:\n # 1) SOFT_DISABLED_BIT was set;\n # 2) trace_buffered_event_enable() was called first time;\n echo 'cmdline_proc_show:disable_event:initcall:initcall_finish' > \\\n set_ftrace_filter\n\n # 2. Enable the event registered, then:\n # 1) SOFT_DISABLED_BIT was cleared;\n # 2) trace_buffered_event_disable() was called first time;\n echo 1 > events/initcall/initcall_finish/enable\n\n # 3. Try to call into cmdline_proc_show(), then SOFT_DISABLED_BIT was\n # set again!!!\n cat /proc/cmdline\n\n # 4. Unregister the 'disable_event' command, then:\n # 1) SOFT_DISABLED_BIT was cleared again;\n # 2) trace_buffered_event_disable() was called second time!!!\n echo '!cmdline_proc_show:disable_event:initcall:initcall_finish' > \\\n set_ftrace_filter\n ```\n\nTo fix it, IIUC, we can change to call trace_buffered_event_enable() at\nfist time soft-mode enabled, and call trace_buffered_event_disable() at\nlast time soft-mode disabled." } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "kernel/trace/trace_events.c" ], "versions": [ { "version": "0fc1b09ff1ff404ddf753f5ffa5cd0adc8fdcdc9", "lessThan": "1488d782c9e43087a3f341b8186cd25f3cf75583", "status": "affected", "versionType": "git" }, { "version": "0fc1b09ff1ff404ddf753f5ffa5cd0adc8fdcdc9", "lessThan": "b4f4ab423107dc1ba8e9cc6488c645be6403d3f5", "status": "affected", "versionType": "git" }, { "version": "0fc1b09ff1ff404ddf753f5ffa5cd0adc8fdcdc9", "lessThan": "cdcc35e6454133feb61561b4e0d0c80e52cbc2ba", "status": "affected", "versionType": "git" }, { "version": "0fc1b09ff1ff404ddf753f5ffa5cd0adc8fdcdc9", "lessThan": "a6d2fd1703cdc8ecfc3e73987e0fb7474ae2b074", "status": "affected", "versionType": "git" }, { "version": "0fc1b09ff1ff404ddf753f5ffa5cd0adc8fdcdc9", "lessThan": "813cede7b2f5a4b1b75d2d4bb4e705cc8e063b20", "status": "affected", "versionType": "git" }, { "version": "0fc1b09ff1ff404ddf753f5ffa5cd0adc8fdcdc9", "lessThan": "a3a3c7bddab9b6c5690b20796ef5e332b8c48afb", "status": "affected", "versionType": "git" }, { "version": "0fc1b09ff1ff404ddf753f5ffa5cd0adc8fdcdc9", "lessThan": "528c9d73153754defb748f0b96ad33308668d817", "status": "affected", "versionType": "git" }, { "version": "0fc1b09ff1ff404ddf753f5ffa5cd0adc8fdcdc9", "lessThan": "dea499781a1150d285c62b26659f62fb00824fce", "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_events.c" ], "versions": [ { "version": "4.7", "status": "affected" }, { "version": "0", "lessThan": "4.7", "status": "unaffected", "versionType": "semver" }, { "version": "4.14.322", "lessThanOrEqual": "4.14.*", "status": "unaffected", "versionType": "semver" }, { "version": "4.19.291", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.4.253", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.10.190", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver" }, { "version": "5.15.124", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.1.43", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.4.8", "lessThanOrEqual": "6.4.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.5", "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": "4.7", "versionEndExcluding": "4.14.322" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "4.19.291" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "5.4.253" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "5.10.190" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "5.15.124" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "6.1.43" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "6.4.8" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "6.5" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/1488d782c9e43087a3f341b8186cd25f3cf75583" }, { "url": "https://git.kernel.org/stable/c/b4f4ab423107dc1ba8e9cc6488c645be6403d3f5" }, { "url": "https://git.kernel.org/stable/c/cdcc35e6454133feb61561b4e0d0c80e52cbc2ba" }, { "url": "https://git.kernel.org/stable/c/a6d2fd1703cdc8ecfc3e73987e0fb7474ae2b074" }, { "url": "https://git.kernel.org/stable/c/813cede7b2f5a4b1b75d2d4bb4e705cc8e063b20" }, { "url": "https://git.kernel.org/stable/c/a3a3c7bddab9b6c5690b20796ef5e332b8c48afb" }, { "url": "https://git.kernel.org/stable/c/528c9d73153754defb748f0b96ad33308668d817" }, { "url": "https://git.kernel.org/stable/c/dea499781a1150d285c62b26659f62fb00824fce" } ], "title": "tracing: Fix warning in trace_buffered_event_disable()", "x_generator": { "engine": "bippy-1.2.0" } } } }