{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2023-54303", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-30T12:06:44.529Z", "datePublished": "2025-12-30T12:23:37.827Z", "dateUpdated": "2025-12-30T12:23:37.827Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-12-30T12:23:37.827Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Disable preemption in bpf_perf_event_output\n\nThe nesting protection in bpf_perf_event_output relies on disabled\npreemption, which is guaranteed for kprobes and tracepoints.\n\nHowever bpf_perf_event_output can be also called from uprobes context\nthrough bpf_prog_run_array_sleepable function which disables migration,\nbut keeps preemption enabled.\n\nThis can cause task to be preempted by another one inside the nesting\nprotection and lead eventually to two tasks using same perf_sample_data\nbuffer and cause crashes like:\n\n kernel tried to execute NX-protected page - exploit attempt? (uid: 0)\n BUG: unable to handle page fault for address: ffffffff82be3eea\n ...\n Call Trace:\n ? __die+0x1f/0x70\n ? page_fault_oops+0x176/0x4d0\n ? exc_page_fault+0x132/0x230\n ? asm_exc_page_fault+0x22/0x30\n ? perf_output_sample+0x12b/0x910\n ? perf_event_output+0xd0/0x1d0\n ? bpf_perf_event_output+0x162/0x1d0\n ? bpf_prog_c6271286d9a4c938_krava1+0x76/0x87\n ? __uprobe_perf_func+0x12b/0x540\n ? uprobe_dispatcher+0x2c4/0x430\n ? uprobe_notify_resume+0x2da/0xce0\n ? atomic_notifier_call_chain+0x7b/0x110\n ? exit_to_user_mode_prepare+0x13e/0x290\n ? irqentry_exit_to_user_mode+0x5/0x30\n ? asm_exc_int3+0x35/0x40\n\nFixing this by disabling preemption in bpf_perf_event_output."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["kernel/trace/bpf_trace.c"], "versions": [{"version": "8c7dcb84e3b744b2b70baa7a44a9b1881c33a9c9", "lessThan": "3654ed5daf492463c3faa434c7000d45c2da2ace", "status": "affected", "versionType": "git"}, {"version": "8c7dcb84e3b744b2b70baa7a44a9b1881c33a9c9", "lessThan": "a0ac32cf61e5a76e2429e486925a52ee41dd75e3", "status": "affected", "versionType": "git"}, {"version": "8c7dcb84e3b744b2b70baa7a44a9b1881c33a9c9", "lessThan": "f2c67a3e60d1071b65848efaa8c3b66c363dd025", "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/bpf_trace.c"], "versions": [{"version": "6.0", "status": "affected"}, {"version": "0", "lessThan": "6.0", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.45", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.4.10", "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": "6.0", "versionEndExcluding": "6.1.45"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.4.10"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.0", "versionEndExcluding": "6.5"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/3654ed5daf492463c3faa434c7000d45c2da2ace"}, {"url": "https://git.kernel.org/stable/c/a0ac32cf61e5a76e2429e486925a52ee41dd75e3"}, {"url": "https://git.kernel.org/stable/c/f2c67a3e60d1071b65848efaa8c3b66c363dd025"}], "title": "bpf: Disable preemption in bpf_perf_event_output", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Disable preemption in bpf_perf_event_output\n\nThe nesting protection in bpf_perf_event_output relies on disabled\npreemption, which is guaranteed for kprobes and tracepoints.\n\nHowever bpf_perf_event_output can be also called from uprobes context\nthrough bpf_prog_run_array_sleepable function which disables migration,\nbut keeps preemption enabled.\n\nThis can cause task to be preempted by another one inside the nesting\nprotection and lead eventually to two tasks using same perf_sample_data\nbuffer and cause crashes like:\n\n kernel tried to execute NX-protected page - exploit attempt? (uid: 0)\n BUG: unable to handle page fault for address: ffffffff82be3eea\n ...\n Call Trace:\n ? __die+0x1f/0x70\n ? page_fault_oops+0x176/0x4d0\n ? exc_page_fault+0x132/0x230\n ? asm_exc_page_fault+0x22/0x30\n ? perf_output_sample+0x12b/0x910\n ? perf_event_output+0xd0/0x1d0\n ? bpf_perf_event_output+0x162/0x1d0\n ? bpf_prog_c6271286d9a4c938_krava1+0x76/0x87\n ? __uprobe_perf_func+0x12b/0x540\n ? uprobe_dispatcher+0x2c4/0x430\n ? uprobe_notify_resume+0x2da/0xce0\n ? atomic_notifier_call_chain+0x7b/0x110\n ? exit_to_user_mode_prepare+0x13e/0x290\n ? irqentry_exit_to_user_mode+0x5/0x30\n ? asm_exc_int3+0x35/0x40\n\nFixing this by disabling preemption in bpf_perf_event_output."}], "id": "CVE-2023-54303", "lastModified": "2025-12-30T13:16:19.437", "metrics": {}, "published": "2025-12-30T13:16:19.437", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3654ed5daf492463c3faa434c7000d45c2da2ace"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a0ac32cf61e5a76e2429e486925a52ee41dd75e3"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f2c67a3e60d1071b65848efaa8c3b66c363dd025"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}