CVE - CVE-2023-53075

CVE-ID
CVE-2023-53075	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.kernel.org/stable/c/2a0d71fabfeb349216d33f001a6421b1768bd3a9 URL:https://git.kernel.org/stable/c/2a0d71fabfeb349216d33f001a6421b1768bd3a9 MISC:https://git.kernel.org/stable/c/2de28e5ce34b22b73b833a21e2c45ae3aade3964 URL:https://git.kernel.org/stable/c/2de28e5ce34b22b73b833a21e2c45ae3aade3964 MISC:https://git.kernel.org/stable/c/4f84f31f63416b0f02fc146ffdc4ab32723eb7e8 URL:https://git.kernel.org/stable/c/4f84f31f63416b0f02fc146ffdc4ab32723eb7e8 MISC:https://git.kernel.org/stable/c/7569ee04b0e3b32df79f64db3a7138573edad9bc URL:https://git.kernel.org/stable/c/7569ee04b0e3b32df79f64db3a7138573edad9bc MISC:https://git.kernel.org/stable/c/83c3b2f4e7c61367c7b24551f4c6eb94bbdda283 URL:https://git.kernel.org/stable/c/83c3b2f4e7c61367c7b24551f4c6eb94bbdda283 MISC:https://git.kernel.org/stable/c/ac58b88ccbbb8e9fb83e137cee04a856b1ea6635 URL:https://git.kernel.org/stable/c/ac58b88ccbbb8e9fb83e137cee04a856b1ea6635 MISC:https://git.kernel.org/stable/c/ee92fa443358f4fc0017c1d0d325c27b37802504 URL:https://git.kernel.org/stable/c/ee92fa443358f4fc0017c1d0d325c27b37802504 MISC:https://git.kernel.org/stable/c/f1bd8b7fd890d87d0dc4dedc6287ea34dd07c0b4 URL:https://git.kernel.org/stable/c/f1bd8b7fd890d87d0dc4dedc6287ea34dd07c0b4
Assigning CNA
kernel.org
Date Record Created
20250502	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20250502)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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