{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-53557","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-10-04T15:14:15.923Z","datePublished":"2025-10-04T15:17:02.077Z","dateUpdated":"2026-05-11T19:47:16.582Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T19:47:16.582Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nfprobe: Release rethook after the ftrace_ops is unregistered\n\nWhile running bpf selftests it's possible to get following fault:\n\n  general protection fault, probably for non-canonical address \\\n  0x6b6b6b6b6b6b6b6b: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC NOPTI\n  ...\n  Call Trace:\n   <TASK>\n   fprobe_handler+0xc1/0x270\n   ? __pfx_bpf_testmod_init+0x10/0x10\n   ? __pfx_bpf_testmod_init+0x10/0x10\n   ? bpf_fentry_test1+0x5/0x10\n   ? bpf_fentry_test1+0x5/0x10\n   ? bpf_testmod_init+0x22/0x80\n   ? do_one_initcall+0x63/0x2e0\n   ? rcu_is_watching+0xd/0x40\n   ? kmalloc_trace+0xaf/0xc0\n   ? do_init_module+0x60/0x250\n   ? __do_sys_finit_module+0xac/0x120\n   ? do_syscall_64+0x37/0x90\n   ? entry_SYSCALL_64_after_hwframe+0x72/0xdc\n   </TASK>\n\nIn unregister_fprobe function we can't release fp->rethook while it's\npossible there are some of its users still running on another cpu.\n\nMoving rethook_free call after fp->ops is unregistered with\nunregister_ftrace_function call."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/trace/fprobe.c"],"versions":[{"version":"5b0ab78998e32564a011b14c4c7f9c81e2d42b9d","lessThan":"ce3ec57faff559ccae1e0150c1f077eb2df648a4","status":"affected","versionType":"git"},{"version":"5b0ab78998e32564a011b14c4c7f9c81e2d42b9d","lessThan":"03d63255a5783243c110aec5e6ae2f1475c3be76","status":"affected","versionType":"git"},{"version":"5b0ab78998e32564a011b14c4c7f9c81e2d42b9d","lessThan":"5f81018753dfd4989e33ece1f0cb6b8aae498b82","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/fprobe.c"],"versions":[{"version":"5.18","status":"affected"},{"version":"0","lessThan":"5.18","status":"unaffected","versionType":"semver"},{"version":"6.1.40","lessThanOrEqual":"6.1.*","status":"unaffected","versionType":"semver"},{"version":"6.4.5","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":"5.18","versionEndExcluding":"6.1.40"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.4.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.18","versionEndExcluding":"6.5"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/ce3ec57faff559ccae1e0150c1f077eb2df648a4"},{"url":"https://git.kernel.org/stable/c/03d63255a5783243c110aec5e6ae2f1475c3be76"},{"url":"https://git.kernel.org/stable/c/5f81018753dfd4989e33ece1f0cb6b8aae498b82"}],"title":"fprobe: Release rethook after the ftrace_ops is unregistered","x_generator":{"engine":"bippy-1.2.0"}}}}