{"cve":"CVE-2023-53167","nvd":{"published":"2025-09-15T14:15:38.457","modified":"2026-06-17T06:44:25.647","status":"Analyzed","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix null pointer dereference in tracing_err_log_open()\n\nFix an issue in function 'tracing_err_log_open'.\nThe function doesn't call 'seq_open' if the file is opened only with\nwrite permissions, which results in 'file->private_data' being left as null.\nIf we then use 'lseek' on that opened file, 'seq_lseek' dereferences\n'file->private_data' in 'mutex_lock(&m->lock)', resulting in a kernel panic.\nWriting to this node requires root privileges, therefore this bug\nhas very little security impact.\n\nTracefs node: /sys/kernel/tracing/error_log\n\nExample Kernel panic:\n\nUnable to handle kernel NULL pointer dereference at virtual address 0000000000000038\nCall trace:\n mutex_lock+0x30/0x110\n seq_lseek+0x34/0xb8\n __arm64_sys_lseek+0x6c/0xb8\n invoke_syscall+0x58/0x13c\n el0_svc_common+0xc4/0x10c\n do_el0_svc+0x24/0x98\n el0_svc+0x24/0x88\n el0t_64_sync_handler+0x84/0xe4\n el0t_64_sync+0x1b4/0x1b8\nCode: d503201f aa0803e0 aa1f03e1 aa0103e9 (c8e97d02)\n---[ end trace 561d1b49c12cf8a5 ]---\nKernel panic - not syncing: Oops: Fatal exception","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-476"],"references":["https://git.kernel.org/stable/c/02b0095e2fbbc060560c1065f86a211d91e27b26","https://git.kernel.org/stable/c/1e1c9aa9288a46c342f0f2c5c0b1c0876b9b0276","https://git.kernel.org/stable/c/3b5d9b7b875968a8a8c99dac45cb85b705c44802","https://git.kernel.org/stable/c/7060e5aac6dc195124c106f49106d653a416323a","https://git.kernel.org/stable/c/93114cbc7cb169f6f26eeaed5286b91bb86b463b"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:08:41.295252406+00:00"},"epss":{"cve":"CVE-2023-53167","score":0.0016,"percentile":0.0511,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}