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
References
Configurations
Configuration 1 (hide)
|
History
24 Nov 2025, 21:02
| Type | Values Removed | Values Added |
|---|---|---|
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| CWE | CWE-476 | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| First Time |
Linux linux Kernel
Linux |
|
| References | () https://git.kernel.org/stable/c/02b0095e2fbbc060560c1065f86a211d91e27b26 - Patch | |
| References | () https://git.kernel.org/stable/c/1e1c9aa9288a46c342f0f2c5c0b1c0876b9b0276 - Patch | |
| References | () https://git.kernel.org/stable/c/3b5d9b7b875968a8a8c99dac45cb85b705c44802 - Patch | |
| References | () https://git.kernel.org/stable/c/7060e5aac6dc195124c106f49106d653a416323a - Patch | |
| References | () https://git.kernel.org/stable/c/93114cbc7cb169f6f26eeaed5286b91bb86b463b - Patch | |
| References | () https://git.kernel.org/stable/c/938d5b7a75e18264887387ddf9169db6d8aeef98 - Patch |
Information
Published : 2025-09-15 14:15
Updated : 2025-11-24 21:02
NVD link : CVE-2023-53167
Mitre link : CVE-2023-53167
CVE.ORG link : CVE-2023-53167
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-476
NULL Pointer Dereference