CVE-2026-53160

In the Linux kernel, the following vulnerability has been resolved: misc: fastrpc: fix use-after-free race in fastrpc_map_create fastrpc_map_lookup returns a raw pointer after releasing fl->lock. The caller fastrpc_map_create then calls fastrpc_map_get (kref_get_unless_zero) on this unprotected pointer. A concurrent MEM_UNMAP can free the map between the lock release and the kref operation, resulting in a use-after-free on the freed slab object. Restore the take_ref parameter to fastrpc_map_lookup so the reference is acquired atomically under fl->lock before the pointer is exposed to the caller.
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc7:*:*:*:*:*:*

History

06 Jul 2026, 16:41

Type Values Removed Values Added
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc7:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:7.1:rc6:*:*:*:*:*:*
CWE CWE-416
First Time Linux linux Kernel
Linux
References () https://git.kernel.org/stable/c/07ebe87915d8accdaba20c4f88c5ae430fe62fbb - () https://git.kernel.org/stable/c/07ebe87915d8accdaba20c4f88c5ae430fe62fbb - Patch
References () https://git.kernel.org/stable/c/0a3b87293fbd34fda651e6aead9964f84b893962 - () https://git.kernel.org/stable/c/0a3b87293fbd34fda651e6aead9964f84b893962 - Patch
References () https://git.kernel.org/stable/c/5b0166112019d1dce30b976ab28fd67f7f0be532 - () https://git.kernel.org/stable/c/5b0166112019d1dce30b976ab28fd67f7f0be532 - Patch
References () https://git.kernel.org/stable/c/8b080c89183196fd3e49212f2a1a1c4a29335b9c - () https://git.kernel.org/stable/c/8b080c89183196fd3e49212f2a1a1c4a29335b9c - Patch
References () https://git.kernel.org/stable/c/992f121796b7ca83a5a8b93da24e971363206218 - () https://git.kernel.org/stable/c/992f121796b7ca83a5a8b93da24e971363206218 - Patch
References () https://git.kernel.org/stable/c/f20f6512ecb75c816e0debf4551a138f098615c4 - () https://git.kernel.org/stable/c/f20f6512ecb75c816e0debf4551a138f098615c4 - Patch

28 Jun 2026, 08:16

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.8

25 Jun 2026, 09:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-06-25 09:16

Updated : 2026-07-06 16:41


NVD link : CVE-2026-53160

Mitre link : CVE-2026-53160

CVE.ORG link : CVE-2026-53160


JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-416

Use After Free