CVE-2026-74426

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