CVE-2024-56652

HIGH EPSS 10.9%
Published Dec 27, 20241y ago · Modified Jun 17, 20261w ago
7.8 CVSS 3.1
High
Find Similar
Published Dec 27, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

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+0x229/0x380 Simplify the code to fix the bug. A better pooling strategy may be added back later if needed. (cherry picked from commit e5283bd4dfecbd3335f43b62a68e24dae23f59e4)

CVSS Details

Base Score
7.8
Exploitability
1.8
Impact
5.9
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

EPSS Exploit Probability
10.9% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel*≥6.8  –  <6.12.6
linuxlinux_kernel6.13any
linuxlinux_kernel6.13any

References 2

  • git.kernel.org https://git.kernel.org/stable/c/b0193a31a0ca5a0f9e60bb4a86537d46b98111b8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d7b028656c29b22fcde1c6ee1df5b28fbba987b5
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/b0193a31a0ca5a0f9e60bb4a86537d46b98111b8
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/d7b028656c29b22fcde1c6ee1df5b28fbba987b5
    Patch