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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-74426 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: afs: fix NULL pointer dereference in afs_get_tree() afs_alloc_sbi() uses kzalloc for memory allocation. And, if ctx->dyn_root is not null, as->cell and as->volume are null. In trace_afs_get_tree() they are dereferenced. KASAN error message: KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 2 PID: 18478 Comm: syz-executor.7 Not tainted 5.10.246-syzkaller #0 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014 RIP: 0010:perf_trace_afs_get_tree+0x1d9/0x550 include/trace/events/afs.h:1365 Call Trace: trace_afs_get_tree include/trace/events/afs.h:1365 [inline] afs_get_tree+0x922/0x1350 fs/afs/super.c:599 vfs_get_tree+0x8e/0x300 fs/super.c:1572 do_new_mount fs/namespace.c:3011 [inline] path_mount+0x14a5/0x2220 fs/namespace.c:3341 do_mount fs/namespace.c:3354 [inline] __do_sys_mount fs/namespace.c:3562 [inline] __se_sys_mount fs/namespace.c:3539 [inline] __x64_sys_mount+0x283/0x300 fs/namespace.c:3539 do_syscall_64+0x33/0x50 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x67/0xd1 Found by Linux Verification Center (linuxtesting.org) with Syzkaller.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/0b70716081c6462be9b2928ad736d0d527b09678 kernel.org
https://git.kernel.org/stable/c/23b3d457d8387bcb2a61063a9e520063ada9335f kernel.org
https://git.kernel.org/stable/c/67fb48c4a0874953212321cd5d57fdb4900dbc31 kernel.org
https://git.kernel.org/stable/c/70b2842734d831c908474779bb8a76daf55f782c kernel.org
https://git.kernel.org/stable/c/867b3ea146a041023bfcd258e6db516b1bb28f19 kernel.org
https://git.kernel.org/stable/c/d5b17474feed3c30991f07affa2473adbad95055 kernel.org
https://git.kernel.org/stable/c/d648cc2069eb081707c061849046d909f57c78b1 kernel.org
https://git.kernel.org/stable/c/ea19edf71721cd42f923e3c70f4ff995b422fe3b kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-74426
NVD Published Date:
08/15/2026
NVD Last Modified:
08/15/2026
Source:
kernel.org