CVE-2023-53557
- Source
- https://cve.org/CVERecord?id=CVE-2023-53557
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53557.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-53557
- Downstream
- Related
- Published
- 2025-10-04T15:17:02Z
- Modified
- 2026-08-12T03:51:08Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- 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 DEBUG_PAGEALLOC NOPTI ... Call Trace: fprobe_handler+0xc1/0x270 ? __pfx_bpf_testmod_init+0x10/0x10 ? __pfx_bpf_testmod_init+0x10/0x10 ? bpf_fentry_test1+0x5/0x10 ? bpf_fentry_test1+0x5/0x10 ? bpf_testmod_init+0x22/0x80 ? do_one_initcall+0x63/0x2e0 ? rcu_is_watching+0xd/0x40 ? kmalloc_trace+0xaf/0xc0 ? do_init_module+0x60/0x250 ? __do_sys_finit_module+0xac/0x120 ? do_syscall_64+0x37/0x90 ? entry_SYSCALL_64_after_hwframe+0x72/0xdcIn 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 rethook_free call after fp->ops is unregistered with unregister_ftrace_function call.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53557.json" }- References
-
- 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
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git