Use After Free in Linux
CVE-2023-52515
In the Linux kernel, the following vulnerability has been resolved: RDMA/srp: Do not call scsi_done() from srp_abort() After scmd_eh_abort_handler() has called the SCSI LLD eh_abort_handler callback, it performs one of the following actions: * Call scsi_queue_insert(). * Call scsi_finish_command(). * Call scsi_eh_scmd_add(). Hence, SCSI abort handlers must not call scsi_done(). Otherwise all the above actions would trigger a use-after-free. Hence remove the scsi_done() call from srp_abort(). Keep the srp_free_req() call before returning SUCCESS because we may not see the command again if SUCCESS is returned.
Vulnerability class: Use-After-Free
EPSS: 0.002 (14.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linux — versions 3.0.45, 6.5.7, 0575df129e2eb4a801beae0e6e041787480f42b9
- Linux Linux_kernel — versions 6.6
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2023-52515?
- CVE-2023-52515 is a critical-severity vulnerability in Linux, classified under Use After Free. CVSS score: 9.8/10. Published 2024-03-02.
- How severe is CVE-2023-52515?
- Critical severity. CVSS v3 base score is 9.8 out of 10.