linux: In the Linux kernel, the following vulnerability has been resolved: loop: Fix use-after-free issues do_req_fileback...
CVE-2023-53111 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: loop: Fix use-after-free issues do_req_filebacked() calls blk_mq_complete_request() synchronously or asynchronously when using asynchronous I/O unless memory allocation fails. Hence, modify loop_handle_cmd() such that it does not dereference 'cmd' nor 'rq' after do_req_filebacked() finished unless we are sure that the request has not yet been completed. This patch fixes the following kernel crash: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000054 Call trace: css_put.42938+0x1c/0x1ac loop_process_work+0xc8c/0xfd4 loop_rootcg_workfn+0x24/0x34 process_one_work+0x244/0x558 worker_thread+0x400/0x8fc kthread+0x16c/0x1e0 ret_from_fork+0x10/0x20
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-2023-53111 | May 2, 2025 |
| linux · Debian 13.5 (trixie) | 6.1.25-1 | DEBIAN-CVE-2023-53111 | May 2, 2025 |
| linux · Debian 14 | 6.1.25-1 | DEBIAN-CVE-2023-53111 | 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 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.