CVE-2023-53167
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2023
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
tracing: Fix null pointer dereference in tracing_err_log_open()
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
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 8a062902be725f647dc8da532b04d836546a369a | affected | git | 93114cbc7cb169f6f26eeaed5286b91bb86b463b | Unavailable | None listed |
| 8a062902be725f647dc8da532b04d836546a369a | affected | git | 7060e5aac6dc195124c106f49106d653a416323a | Unavailable | None listed |
| 8a062902be725f647dc8da532b04d836546a369a | affected | git | 3b5d9b7b875968a8a8c99dac45cb85b705c44802 | Unavailable | None listed |
| 8a062902be725f647dc8da532b04d836546a369a | affected | git | 938d5b7a75e18264887387ddf9169db6d8aeef98 | Unavailable | None listed |
| 8a062902be725f647dc8da532b04d836546a369a | affected | git | 1e1c9aa9288a46c342f0f2c5c0b1c0876b9b0276 | Unavailable | None listed |
| 8a062902be725f647dc8da532b04d836546a369a | affected | git | 02b0095e2fbbc060560c1065f86a211d91e27b26 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 5.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 5.2 | Unavailable | None listed |
| 5.4.251 | unaffected | semver | Unavailable | 5.4.* | None listed |
| 5.10.188 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.121 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.40 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.4.5 | unaffected | semver | Unavailable | 6.4.* | None listed |
| 6.5 | unaffected | original_commit_for_fix | Unavailable | * | None listed |