CVE-2023-53111
- Source
- https://cve.org/CVERecord?id=CVE-2023-53111
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53111.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2023-53111
- Downstream
- Related
- Published
- 2025-05-02T15:55:51Z
- Modified
- 2026-08-12T03:51:21Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- loop: Fix use-after-free issues
- Details
-
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
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53111.json" }- References
-
- https://git.kernel.org/stable/c/407badf73ec9fb0d5744bf2ca1745c1818aa222f
- https://git.kernel.org/stable/c/6917395c4667cfb607ed8bf1826205a59414657c
- https://git.kernel.org/stable/c/9b0cb770f5d7b1ff40bea7ca385438ee94570eec
- https://git.kernel.org/stable/c/e3fda704903f6d1fc351412f1bc6620333959ada
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53111.json
- https://nvd.nist.gov/vuln/detail/CVE-2023-53111
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedbc07c10a3603a5ab3ef01ba42b3d41f9ac63d1b6Fixed407badf73ec9fb0d5744bf2ca1745c1818aa222fFixede3fda704903f6d1fc351412f1bc6620333959adaFixed6917395c4667cfb607ed8bf1826205a59414657cFixed9b0cb770f5d7b1ff40bea7ca385438ee94570eec