Hello, syzbot found the following issue on: HEAD commit: 6d464646530f Merge branch 'for-next/core' into for-kernelci git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=1052b24b880000 kernel config: https://syzkaller.appspot.com/x/.config?x=23eec5c79c22aaf8 dashboard link: https://syzkaller.appspot.com/bug?extid=11f0fdbd79dbdfdc5984 compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 userspace arch: arm64 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13f9193d880000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=155d363d880000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/f22d29413625/disk-6d464646.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/389f0a5f1a4a/vmlinux-6d464646.xz kernel image: https://storage.googleapis.com/syzbot-assets/48ddb02d82da/Image-6d464646.gz.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/2bf7bb4ee195/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+11f0fdbd79dbdfdc5984@xxxxxxxxxxxxxxxxxxxxxxxxx Unable to handle kernel paging request at virtual address 00616161616161a1 Mem abort info: ESR = 0x0000000096000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault Data abort info: ISV = 0, ISS = 0x00000004 CM = 0, WnR = 0 [00616161616161a1] address between user and kernel address ranges Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 3083 Comm: udevd Not tainted 6.1.0-rc6-syzkaller-32662-g6d464646530f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022 pstate: 40400005 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __kmem_cache_alloc_node+0x17c/0x350 mm/slub.c:3437 lr : slab_pre_alloc_hook mm/slab.h:712 [inline] lr : slab_alloc_node mm/slub.c:3318 [inline] lr : __kmem_cache_alloc_node+0x80/0x350 mm/slub.c:3437 sp : ffff80000fee3890 x29: ffff80000fee38a0 x28: ffff0000c5718000 x27: ffff80000cf6f4f0 x26: ffff80000fee3a10 x25: 00000000ffffffff x24: ffff8000084360d4 x23: 0000000000000021 x22: 6161616161616161 x21: 0000000000000000 x20: 0000000000000cc0 x19: ffff0000c0001200 x18: 0000000000000000 x17: 0000000000000000 x16: ffff80000dbe6158 x15: ffff0000c5718000 x14: 0000000000000010 x13: 0000000000000000 x12: ffff0000c5718000 x11: 0000000000000001 x10: 0000000000000000 x9 : 0000000000000040 x8 : 00000000000ae251 x7 : ffff8000084bf248 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : 00000000000ae259 x2 : 0000000000000000 x1 : 0000000000000cc0 x0 : fffffc00032c8dc0 Call trace: next_tid mm/slub.c:2349 [inline] slab_alloc_node mm/slub.c:3382 [inline] __kmem_cache_alloc_node+0x17c/0x350 mm/slub.c:3437 __do_kmalloc_node mm/slab_common.c:954 [inline] __kmalloc_node+0xbc/0x14c mm/slab_common.c:962 kmalloc_node include/linux/slab.h:579 [inline] kvmalloc_node+0x84/0x1a4 mm/util.c:581 kvmalloc include/linux/slab.h:706 [inline] simple_xattr_alloc+0x50/0x90 fs/xattr.c:1008 shmem_initxattrs+0x44/0xf0 mm/shmem.c:3258 security_inode_init_security+0x208/0x278 security/security.c:1119 shmem_mknod+0xa0/0x13c mm/shmem.c:2915 shmem_create+0x40/0x54 mm/shmem.c:2974 lookup_open fs/namei.c:3413 [inline] open_last_lookups fs/namei.c:3481 [inline] path_openat+0x804/0x11c4 fs/namei.c:3710 do_filp_open+0xdc/0x1b8 fs/namei.c:3740 do_sys_openat2+0xb8/0x22c fs/open.c:1310 do_sys_open fs/open.c:1326 [inline] __do_sys_openat fs/open.c:1342 [inline] __se_sys_openat fs/open.c:1337 [inline] __arm64_sys_openat+0xb0/0xe0 fs/open.c:1337 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:584 Code: 54000ee1 34000eeb b9402a69 91002103 (f8696ada) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 54000ee1 b.ne 0x1dc // b.any 4: 34000eeb cbz w11, 0x1e0 8: b9402a69 ldr w9, [x19, #40] c: 91002103 add x3, x8, #0x8 * 10: f8696ada ldr x26, [x22, x9] <-- trapping instruction --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches
