CVE-2024-56652
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2024-56652
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-56652.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2024-56652
- Downstream
- Related
- Published
- 2024-12-27T15:15:25Z
- Modified
- 2025-02-11T16:15:47Z
- 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
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
drm/xe/reg_sr: Remove register pool
That pool implementation doesn't really work: if the krealloc happens to move the memory and return another address, the entries in the xarray become invalid, leading to use-after-free later:
BUG: KASAN: slab-use-after-free in xe_reg_sr_apply_mmio+0x570/0x760 [xe] Read of size 4 at addr ffff8881244b2590 by task modprobe/2753 Allocated by task 2753: kasan_save_stack+0x39/0x70 kasan_save_track+0x14/0x40 kasan_save_alloc_info+0x37/0x60 __kasan_kmalloc+0xc3/0xd0 __kmalloc_node_track_caller_noprof+0x200/0x6d0 krealloc_noprof+0x229/0x380Simplify the code to fix the bug. A better pooling strategy may be added back later if needed.
(cherry picked from commit e5283bd4dfecbd3335f43b62a68e24dae23f59e4)
- References
Affected packages
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source