CVE-2023-53075
HIGH
MEDIUM
Priority: 0.02
BB Relevance:
41/100
Published: 2025-05-02
Modified: 2026-11-05
First seen: 2026-11-05
Status: active
Attack Surface
Low Complexity
No Interaction
Conf. Impact
Integ. Impact
CVSS Vector Breakdown
AV:
Local
AC:
Low
PR:
Low
UI:
None
S:
Unchanged
C:
High
I:
High
A:
High
Description
In the Linux kernel, the following vulnerability has been resolved: ftrace: Fix invalid address access in lookup_rec() when index is 0 KASAN reported follow problem: BUG: KASAN: use-after-free in lookup_rec Read of size 8 at addr ffff000199270ff0 by task modprobe CPU: 2 Comm: modprobe Call trace: kasan_report __asan_load8 lookup_rec ftrace_location arch_check_ftrace_location check_kprobe_address_safe register_kprobe When checking pg->records[pg->index - 1].ip in lookup_rec(), it can get a pg which is newly added to ftrace_pages_start in ftrace_process_locs(). Before the first pg->index++, index is 0 and accessing pg->records[-1].ip will cause this problem. Don't check the ip when pg->index is 0.
Weakness Classification (1)
Affected Software (12)
| Vendor | Product | Version |
|---|---|---|
| Linux | Linux | 9644302e3315e7e36495d230d5ac7125a316d33e < 2de28e5ce34b22b73b833a21e2c45ae3aade3964 |
| Linux | Linux | 9644302e3315e7e36495d230d5ac7125a316d33e < 7569ee04b0e3b32df79f64db3a7138573edad9bc |
| Linux | Linux | 9644302e3315e7e36495d230d5ac7125a316d33e < ac58b88ccbbb8e9fb83e137cee04a856b1ea6635 |
| Linux | Linux | 9644302e3315e7e36495d230d5ac7125a316d33e < 83c3b2f4e7c61367c7b24551f4c6eb94bbdda283 |
| Linux | Linux | 9644302e3315e7e36495d230d5ac7125a316d33e < 2a0d71fabfeb349216d33f001a6421b1768bd3a9 |
| Linux | Linux | 9644302e3315e7e36495d230d5ac7125a316d33e < 4f84f31f63416b0f02fc146ffdc4ab32723eb7e8 |
| Linux | Linux | 9644302e3315e7e36495d230d5ac7125a316d33e < f1bd8b7fd890d87d0dc4dedc6287ea34dd07c0b4 |
| Linux | Linux | 9644302e3315e7e36495d230d5ac7125a316d33e < ee92fa443358f4fc0017c1d0d325c27b37802504 |
| Linux | Linux | 3.5 |
| linux | linux_kernel | 3.5 – 4.14.311 |
| linux | linux_kernel | 6.3 |
| linux | linux_kernel | 6.3 |