CVE-2023-53111
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2023
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
loop: Fix use-after-free issues
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
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| bc07c10a3603a5ab3ef01ba42b3d41f9ac63d1b6 | affected | git | 407badf73ec9fb0d5744bf2ca1745c1818aa222f | Unavailable | None listed |
| bc07c10a3603a5ab3ef01ba42b3d41f9ac63d1b6 | affected | git | e3fda704903f6d1fc351412f1bc6620333959ada | Unavailable | None listed |
| bc07c10a3603a5ab3ef01ba42b3d41f9ac63d1b6 | affected | git | 6917395c4667cfb607ed8bf1826205a59414657c | Unavailable | None listed |
| bc07c10a3603a5ab3ef01ba42b3d41f9ac63d1b6 | affected | git | 9b0cb770f5d7b1ff40bea7ca385438ee94570eec | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 4.4 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 4.4 | Unavailable | None listed |
| 5.15.104 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.21 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.2.8 | unaffected | semver | Unavailable | 6.2.* | None listed |
| 6.3 | unaffected | original_commit_for_fix | Unavailable | * | None listed |