CVE-2023-53075
Linux Kernel Ftrace Use-After-Free Vulnerability
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.
INFO
Published Date :
May 2, 2025, 4:15 p.m.
Last Modified :
May 5, 2025, 8:54 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
Exploitability Score :
References to Advisories, Solutions, and Tools
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CVE-2023-53075.
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The following table lists the changes that have been made to the
CVE-2023-53075 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
May. 02, 2025
Action Type Old Value New Value Added 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. Added Reference https://git.kernel.org/stable/c/2a0d71fabfeb349216d33f001a6421b1768bd3a9 Added Reference https://git.kernel.org/stable/c/2de28e5ce34b22b73b833a21e2c45ae3aade3964 Added Reference https://git.kernel.org/stable/c/4f84f31f63416b0f02fc146ffdc4ab32723eb7e8 Added Reference https://git.kernel.org/stable/c/7569ee04b0e3b32df79f64db3a7138573edad9bc Added Reference https://git.kernel.org/stable/c/83c3b2f4e7c61367c7b24551f4c6eb94bbdda283 Added Reference https://git.kernel.org/stable/c/ac58b88ccbbb8e9fb83e137cee04a856b1ea6635 Added Reference https://git.kernel.org/stable/c/ee92fa443358f4fc0017c1d0d325c27b37802504 Added Reference https://git.kernel.org/stable/c/f1bd8b7fd890d87d0dc4dedc6287ea34dd07c0b4
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-53075 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-53075
weaknesses.