linux: In the Linux kernel, the following vulnerability has been resolved: ftrace: Fix invalid address access in lookup_rec...
CVE-2023-53075 is fixed in 20 products on 1 platform, first by ALAS2023-2023-148, released March 30, 2023. It is not reported as exploited. Patch Radar priority: High.
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool · amzn 2023 | 6.1.21-1.45.amzn2023 | ALAS2023-2023-148 | Mar 30, 2023 |
| bpftool-debuginfo · amzn 2023 | 6.1.21-1.45.amzn2023 | ALAS2023-2023-148 | Mar 30, 2023 |
| kernel · amzn 2023 | 6.1.21-1.45.amzn2023 | ALAS2023-2023-148 | Mar 30, 2023 |
| kernel-debuginfo · amzn 2023 | 6.1.21-1.45.amzn2023 | ALAS2023-2023-148 | Mar 30, 2023 |
| kernel-debuginfo-common-aarch64 · amzn 2023 | 6.1.21-1.45.amzn2023 | ALAS2023-2023-148 | Mar 30, 2023 |
| kernel-debuginfo-common-x86_64 · amzn 2023 | 6.1.21-1.45.amzn2023 | ALAS2023-2023-148 | Mar 30, 2023 |
| kernel-devel · amzn 2023 | 6.1.21-1.45.amzn2023 | ALAS2023-2023-148 | Mar 30, 2023 |
| kernel-headers · amzn 2023 | 6.1.21-1.45.amzn2023 | ALAS2023-2023-148 | Mar 30, 2023 |
| kernel-libbpf · amzn 2023 | 6.1.21-1.45.amzn2023 | ALAS2023-2023-148 | Mar 30, 2023 |
| kernel-libbpf-devel · amzn 2023 | 6.1.21-1.45.amzn2023 | ALAS2023-2023-148 | Mar 30, 2023 |
| kernel-libbpf-static · amzn 2023 | 6.1.21-1.45.amzn2023 | ALAS2023-2023-148 | Mar 30, 2023 |
| kernel-livepatch-6.1.21-1.45 · amzn 2023 | 1.0-0.amzn2023 | ALAS2023-2023-148 | Mar 30, 2023 |
| kernel-tools · amzn 2023 | 6.1.21-1.45.amzn2023 | ALAS2023-2023-148 | Mar 30, 2023 |
| kernel-tools-debuginfo · amzn 2023 | 6.1.21-1.45.amzn2023 | ALAS2023-2023-148 | Mar 30, 2023 |
| kernel-tools-devel · amzn 2023 | 6.1.21-1.45.amzn2023 | ALAS2023-2023-148 | Mar 30, 2023 |
| linux · Debian 12.15 (bookworm) | 6.1.25-1 | DEBIAN-CVE-2023-53075 | May 2, 2025 |
| linux · Debian 13.5 (trixie) | 6.1.25-1 | DEBIAN-CVE-2023-53075 | May 2, 2025 |
| linux · Debian 14 | 6.1.25-1 | DEBIAN-CVE-2023-53075 | May 2, 2025 |
| perf · amzn 2023 | 6.1.21-1.45.amzn2023 | ALAS2023-2023-148 | Mar 30, 2023 |
| perf-debuginfo · amzn 2023 | 6.1.21-1.45.amzn2023 | ALAS2023-2023-148 | Mar 30, 2023 |
| python3-perf · amzn 2023 | 6.1.21-1.45.amzn2023 | ALAS2023-2023-148 | Mar 30, 2023 |
| python3-perf-debuginfo · amzn 2023 | 6.1.21-1.45.amzn2023 | ALAS2023-2023-148 | Mar 30, 2023 |
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