Answer in brief
CVE-2023-53167 records a Medium severity (CVSS 5.5) vulnerability in tracing: Fix null pointer dereference in tracing_err_log_open(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | 5.2 | Not reported |
| Linux/Linuxgeneric | >=8a062902be725f647dc8da532b04d836546a369a <93114cbc7cb169f6f26eeaed5286b91bb86b463b || >=8a062902be725f647dc8da532b04d836546a369a <7060e5aac6dc195124c106f49106d653a416323a || >=8a062902be725f647dc8da532b04d836546a369a <3b5d9b7b875968a8a8c99dac45cb85b705c44802 || >=8a062902be725f647dc8da532b04d836546a369a <938d5b7a75e18264887387ddf9169db6d8aeef98 || >=8a062902be725f647dc8da532b04d836546a369a <1e1c9aa9288a46c342f0f2c5c0b1c0876b9b0276 || >=8a062902be725f647dc8da532b04d836546a369a <02b0095e2fbbc060560c1065f86a211d91e27b26 | 93114cbc7cb169f6f26eeaed5286b91bb86b463b, 7060e5aac6dc195124c106f49106d653a416323a, 3b5d9b7b875968a8a8c99dac45cb85b705c44802, 938d5b7a75e18264887387ddf9169db6d8aeef98, 1e1c9aa9288a46c342f0f2c5c0b1c0876b9b0276, 02b0095e2fbbc060560c1065f86a211d91e27b26 |
Published upstream
Sep 15, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 5, 2026
In the Linux kernel, the following vulnerability has been resolved: tracing: Fix null pointer dereference in tracing_err_log_open() Fix an issue in function 'tracing_err_log_open'. The function doesn't call 'seq_open' if the file is opened only with write permissions, which results in 'file->private_data' being left as null. If we then use 'lseek' on that opened file, 'seq_lseek' dereferences 'file->private_data' in 'mutex_lock(&m->lock)', resulting in a kernel panic. Writing to this node requires root privileges, therefore this bug has very little security impact. Tracefs node: /sys/kernel/tracing/error_log Example Kernel panic: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000038 Call trace: mutex_lock+0x30/0x110 seq_lseek+0x34/0xb8 __arm64_sys_lseek+0x6c/0xb8 invoke_syscall+0x58/0x13c el0_svc_common+0xc4/0x10c do_el0_svc+0x24/0x98 el0_svc+0x24/0x88 el0t_64_sync_handler+0x84/0xe4 el0t_64_sync+0x1b4/0x1b8 Code: d503201f aa0803e0 aa1f03e1 aa0103e9 (c8e97d02) ---[ end trace 561d1b49c12cf8a5 ]--- Kernel panic - not syncing: Oops: Fatal exception
Quoted source text, attributed separately from HOL analysis.