High severity7.8NVD Advisory· Published Jan 6, 2025· Updated Jun 17, 2026
CVE-2024-56764
CVE-2024-56764
Description
In the Linux kernel, the following vulnerability has been resolved:
ublk: detach gendisk from ublk device if add_disk() fails
Inside ublk_abort_requests(), gendisk is grabbed for aborting all inflight requests. And ublk_abort_requests() is called when exiting the uring context or handling timeout.
If add_disk() fails, the gendisk may have been freed when calling ublk_abort_requests(), so use-after-free can be caused when getting disk's reference in ublk_abort_requests().
Fixes the bug by detaching gendisk from ublk device if add_disk() fails.
Affected products
106.7+ 6 more
- (no CPE)range: 6.7
- (no CPE)
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=6.7,<6.12.8
- cpe:2.3:o:linux:linux_kernel:6.13:rc1:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.13:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.13:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:6.13:rc4:*:*:*:*:*:*
- osv-coords3 versionspkg:deb/ubuntu/[email protected]?arch=source&distro=oracularpkg:linux/kernelpkg:deb/ubuntu/[email protected]?arch=source&distro=oracular
< 6.11.0-1011.12+ 2 more
- (no CPE)range: < 6.11.0-1011.12
- (no CPE)range: >= 6.7.0, < 6.12.8
- (no CPE)range: < 6.11.0-1010.10
Patches
Vulnerability mechanics
References
2News mentions
0No linked articles in our index yet.