Hello, syzbot found the following issue on: HEAD commit: 7b1d1d4cfac0 Merge remote-tracking branch 'iommu/arm/smmu'.. 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=17642de8580000 kernel config: https://syzkaller.appspot.com/x/.config?x=9bc44a6de1ceb5d6 dashboard link: https://syzkaller.appspot.com/bug?extid=c62387c3885ca12e1255 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/4d4a0162c7c3/disk-7b1d1d4c.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/a8c47a4be472/vmlinux-7b1d1d4c.xz kernel image: https://storage.googleapis.com/syzbot-assets/0e173b91f83e/Image-7b1d1d4c.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+c62387c3885ca12e1255@xxxxxxxxxxxxxxxxxxxxxxxxx Unable to handle kernel paging request at virtual address f2c1800000000000 KASAN: maybe wild-memory-access in range [0x9610000000000000-0x9610000000000007] 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, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [f2c1800000000000] address between user and kernel address ranges Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP Modules linked in: CPU: 0 UID: 0 PID: 8456 Comm: syz.4.287 Not tainted 6.12.0-syzkaller-g7b1d1d4cfac0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : memcg_rstat_updated+0xe4/0x288 mm/memcontrol.c:575 lr : memcg_rstat_updated+0x7c/0x288 mm/memcontrol.c:573 sp : ffff80009c567900 x29: ffff80009c567900 x28: 12c2000000000000 x27: ffff80008f8cd000 x26: 00000000000006d8 x25: 1ffff00011f19abd x24: 0000000000000001 x23: dfff800000000000 x22: fffffdffbf72c000 x21: 0000000000000001 x20: 9610000000000000 x19: 0000000000000001 x18: ffff0000f46d2240 x17: 0000000000000000 x16: ffff800083161638 x15: 0000000000000001 x14: 1fffe000366c41c1 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000080000 x10: 0000000000ff0100 x9 : 0000000000000003 x8 : 0000000000000000 x7 : ffff80008051ba0c x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008036f2b8 x2 : 0000000000000001 x1 : 0000000000000080 x0 : 0000000000000000 Call trace: memcg_rstat_updated+0xe4/0x288 mm/memcontrol.c:575 (P) memcg_rstat_updated+0x7c/0x288 mm/memcontrol.c:573 (L) __mod_memcg_lruvec_state+0x370/0x57c mm/memcontrol.c:746 __mod_objcg_mlstate+0x160/0x23c mm/memcontrol.c:2405 drain_obj_stock+0x178/0x350 mm/memcontrol.c:2811 refill_obj_stock+0xe8/0x2d8 mm/memcontrol.c:2860 obj_cgroup_charge+0x17c/0x238 mm/memcontrol.c:2920 __memcg_slab_post_alloc_hook+0x238/0x7fc mm/memcontrol.c:2979 memcg_slab_post_alloc_hook mm/slub.c:2156 [inline] slab_post_alloc_hook mm/slub.c:4095 [inline] slab_alloc_node mm/slub.c:4134 [inline] __do_kmalloc_node mm/slub.c:4263 [inline] __kmalloc_node_noprof+0x368/0x4dc mm/slub.c:4270 __kvmalloc_node_noprof+0x88/0x24c mm/util.c:658 groups_alloc kernel/groups.c:18 [inline] __do_sys_setgroups kernel/groups.c:208 [inline] __se_sys_setgroups kernel/groups.c:198 [inline] __arm64_sys_setgroups+0x130/0x5a0 kernel/groups.c:198 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Code: b4000c14 d343fe9c 12000a89 11000d29 (38f76b88) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: b4000c14 cbz x20, 0x180 4: d343fe9c lsr x28, x20, #3 8: 12000a89 and w9, w20, #0x7 c: 11000d29 add w9, w9, #0x3 * 10: 38f76b88 ldrsb w8, [x28, x23] <-- 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. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup
