Oops: general protection fault, probably for non-canonical address 0xf17ffc1ffff11005: 0000 [#1] PREEMPT SMP KASAN NOPTI KASAN: maybe wild-memory-access in range [0x8c0000ffff888028-0x8c0000ffff88802f] CPU: 1 PID: 10745 Comm: syz-executor.2 Not tainted 6.10.0-rc4-syzkaller-00217-g35bb670d65fc #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:memcg_rstat_updated mm/memcontrol.c:858 [inline] RIP: 0010:__mod_memcg_state+0x20d/0x460 mm/memcontrol.c:970 Code: 48 8d 7b 08 48 89 f8 48 c1 e8 03 42 80 3c 30 00 0f 85 6a 01 00 00 48 8b 5b 08 48 85 db 0f 84 f5 00 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 0c 30 48 89 d8 83 e0 07 83 c0 03 38 c8 7c 08 84 c9 0f 85 RSP: 0018:ffffc900033c7c90 EFLAGS: 00010807 RAX: 1180001ffff11005 RBX: 8c0000ffff88802c RCX: 0000000000000000 RDX: 1ffffffff1a92f69 RSI: ffffffff8b8fc860 RDI: ffffe8ffad17160b RBP: 0000000000000003 R08: 0000000000000000 R09: ffffed1005825aac R10: ffff88802c12d563 R11: 0000000000000000 R12: 0000000000000003 R13: 1ffffffff1fc5b5e R14: dffffc0000000000 R15: 000000000000001f FS: 0000000000000000(0000) GS:ffff88802c100000(0063) knlGS:00000000582cf400 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000003092b000 CR3: 000000002159e000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 00000000e08e000e DR6: 00000000ffff0ff0 DR7: 0000000000000400 Call Trace: mod_memcg_state include/linux/memcontrol.h:1004 [inline] memcg_account_kmem+0x54/0x80 mm/memcontrol.c:3372 obj_cgroup_uncharge_pages mm/memcontrol.c:3394 [inline] refill_obj_stock+0x37b/0x670 mm/memcontrol.c:3665 obj_cgroup_uncharge mm/memcontrol.c:3714 [inline] __memcg_slab_free_hook+0x229/0x5a0 mm/memcontrol.c:3801 memcg_slab_free_hook mm/slub.c:2130 [inline] slab_free mm/slub.c:4434 [inline] kfree+0x364/0x3b0 mm/slub.c:4558 kvfree+0x47/0x50 mm/util.c:680 seq_release+0x51/0x80 fs/seq_file.c:355 kernfs_fop_release+0xfa/0x1f0 fs/kernfs/file.c:766 __fput+0x408/0xbb0 fs/file_table.c:422 __fput_sync+0x47/0x50 fs/file_table.c:507 __do_sys_close fs/open.c:1555 [inline] __se_sys_close fs/open.c:1540 [inline] __ia32_sys_close+0x86/0x100 fs/open.c:1540 do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline] __do_fast_syscall_32+0x73/0x120 arch/x86/entry/common.c:386 do_fast_syscall_32+0x32/0x80 arch/x86/entry/common.c:411 entry_SYSENTER_compat_after_hwframe+0x84/0x8e RIP: 0023:0xf72ba579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000fff5be90 EFLAGS: 00000293 ORIG_RAX: 0000000000000006 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00000000582cf400 RDX: 0000000000000000 RSI: 00000000f7410ff4 RDI: 0000000000046e8d RBP: 00000000f74380c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:memcg_rstat_updated mm/memcontrol.c:858 [inline] RIP: 0010:__mod_memcg_state+0x20d/0x460 mm/memcontrol.c:970 Code: 48 8d 7b 08 48 89 f8 48 c1 e8 03 42 80 3c 30 00 0f 85 6a 01 00 00 48 8b 5b 08 48 85 db 0f 84 f5 00 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 0c 30 48 89 d8 83 e0 07 83 c0 03 38 c8 7c 08 84 c9 0f 85 RSP: 0018:ffffc900033c7c90 EFLAGS: 00010807 RAX: 1180001ffff11005 RBX: 8c0000ffff88802c RCX: 0000000000000000 RDX: 1ffffffff1a92f69 RSI: ffffffff8b8fc860 RDI: ffffe8ffad17160b RBP: 0000000000000003 R08: 0000000000000000 R09: ffffed1005825aac R10: ffff88802c12d563 R11: 0000000000000000 R12: 0000000000000003 R13: 1ffffffff1fc5b5e R14: dffffc0000000000 R15: 000000000000001f FS: 0000000000000000(0000) GS:ffff88802c100000(0063) knlGS:00000000582cf400 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 000000003092b000 CR3: 000000002159e000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 00000000e08e000e DR6: 00000000ffff0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 48 8d 7b 08 lea 0x8(%rbx),%rdi 4: 48 89 f8 mov %rdi,%rax 7: 48 c1 e8 03 shr $0x3,%rax b: 42 80 3c 30 00 cmpb $0x0,(%rax,%r14,1) 10: 0f 85 6a 01 00 00 jne 0x180 16: 48 8b 5b 08 mov 0x8(%rbx),%rbx 1a: 48 85 db test %rbx,%rbx 1d: 0f 84 f5 00 00 00 je 0x118 23: 48 89 d8 mov %rbx,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 0c 30 movzbl (%rax,%r14,1),%ecx <-- trapping instruction 2f: 48 89 d8 mov %rbx,%rax 32: 83 e0 07 and $0x7,%eax 35: 83 c0 03 add $0x3,%eax 38: 38 c8 cmp %cl,%al 3a: 7c 08 jl 0x44 3c: 84 c9 test %cl,%cl 3e: 0f .byte 0xf 3f: 85 .byte 0x85