CVE-2023-53557
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-53557
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53557.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-53557
- Downstream
- Related
- Published
- 2025-10-04T15:17:02.077Z
- Modified
- 2025-11-30T09:10:16.091216Z
- Summary
- fprobe: Release rethook after the ftrace_ops is unregistered
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
fprobe: Release rethook after the ftrace_ops is unregistered
While running bpf selftests it's possible to get following fault:
general protection fault, probably for non-canonical address \ 0x6b6b6b6b6b6b6b6b: 0000 [#1] PREEMPT SMP DEBUGPAGEALLOC NOPTI ... Call Trace: <TASK> fprobehandler+0xc1/0x270 ? _pfxbpftestmodinit+0x10/0x10 ? _pfxbpftestmodinit+0x10/0x10 ? bpffentrytest1+0x5/0x10 ? bpffentrytest1+0x5/0x10 ? bpftestmodinit+0x22/0x80 ? dooneinitcall+0x63/0x2e0 ? rcuiswatching+0xd/0x40 ? kmalloctrace+0xaf/0xc0 ? doinitmodule+0x60/0x250 ? _dosysfinitmodule+0xac/0x120 ? dosyscall64+0x37/0x90 ? entrySYSCALL64after_hwframe+0x72/0xdc </TASK>
In unregister_fprobe function we can't release fp->rethook while it's possible there are some of its users still running on another cpu.
Moving rethookfree call after fp->ops is unregistered with unregisterftrace_function call.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53557.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/03d63255a5783243c110aec5e6ae2f1475c3be76
- https://git.kernel.org/stable/c/5f81018753dfd4989e33ece1f0cb6b8aae498b82
- https://git.kernel.org/stable/c/ce3ec57faff559ccae1e0150c1f077eb2df648a4
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53557.json
- https://nvd.nist.gov/vuln/detail/CVE-2023-53557
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5b0ab78998e32564a011b14c4c7f9c81e2d42b9dFixedce3ec57faff559ccae1e0150c1f077eb2df648a4Fixed03d63255a5783243c110aec5e6ae2f1475c3be76Fixed5f81018753dfd4989e33ece1f0cb6b8aae498b82