Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix use-after-free KFENCE violation during sysfs firmware write During the sysfs firmware write process, a use-after-free read warning is logged from the lpfc_wr_object() routine: BUG: KFENCE: use-after-free read in lpfc_wr_object+0x235/0x310 [lpfc] Use-after-free read at 0x0000000000cf164d (in kfence-#111): lpfc_wr_object+0x235/0x310 [lpfc] lpfc_write_firmware.cold+0x206/0x30d [lpfc] lpfc_sli4_request_firmware_update+0xa6/0x100 [lpfc] lpfc_request_firmware_upgrade_store+0x66/0xb0 [lpfc] kernfs_fop_write_iter+0x121/0x1b0 new_sync_write+0x11c/0x1b0 vfs_write+0x1ef/0x280 ksys_write+0x5f/0xe0 do_syscall_64+0x59/0x90 entry_SYSCALL_64_after_hwframe+0x63/0xcd The driver accessed wr_object pointer data, which was initialized into mailbox payload memory, after the mailbox object was released back to the mailbox pool. Fix by moving the mailbox free calls to the end of the routine ensuring that we don't reference internal mailbox memory after release.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.15.99 |
Related Weaknesses (CWE)
References
- https://git.kernel.org/stable/c/21681b81b9ae548c5dae7ae00d931197a27f480cPatch
- https://git.kernel.org/stable/c/51ab4eb1a25e73c7fc2ad9026520c4d8369c93ccPatch
- https://git.kernel.org/stable/c/8becb97918f04bb177bc9c4e00c2bdb302e00944Patch
- https://git.kernel.org/stable/c/8dfefa8f424ab208e552df1bfd008b732f3d0ad1Patch
FAQ
What is CVE-2023-53282?
CVE-2023-53282 is a vulnerability with a CVSS score of 7.8 (HIGH). In the Linux kernel, the following vulnerability has been resolved: scsi: lpfc: Fix use-after-free KFENCE violation during sysfs firmware write During the sysfs firmware write process, a use-after-f...
How severe is CVE-2023-53282?
CVE-2023-53282 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-53282?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.