general protection fault, probably for non-canonical address 0xe01fed1020028938: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0x00ff8881001449c0-0x00ff8881001449c7] CPU: 1 PID: 2867 Comm: udevd Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:29 [inline] RIP: 0010:atomic_read include/asm-generic/atomic-instrumented.h:28 [inline] RIP: 0010:lock_page_memcg+0xb7/0x1c0 mm/memcontrol.c:2153 Code: 00 00 49 89 c6 4c 8d b8 c0 09 00 00 4c 89 ff be 04 00 00 00 e8 8a db fc ff 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 75 69 41 83 3f 00 0f 8e d1 00 00 00 4d 8d a6 d0 RSP: 0018:ffffc90003bdf830 EFLAGS: 00010202 RAX: 001ff11020028938 RBX: ffffea0004381ff8 RCX: dffffc0000000000 RDX: 0000000000000000 RSI: 0000000000000004 RDI: 00ff8881001449c0 RBP: ffffc90003bdf858 R08: 00000000000001ff R09: 1ffff11026303768 R10: dffffc0000000000 R11: ffffed1026303769 R12: 0000000000000001 R13: 1ffffd40008703ff R14: 00ff888100144000 R15: 00ff8881001449c0 FS: 0000000000000000(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005602ca91f658 CR3: 000000012a93e000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: page_remove_rmap+0x2e/0xe70 mm/rmap.c:1346 zap_pte_range mm/memory.c:1315 [inline] zap_pmd_range mm/memory.c:1435 [inline] zap_pud_range mm/memory.c:1464 [inline] zap_p4d_range mm/memory.c:1485 [inline] unmap_page_range+0x120c/0x2130 mm/memory.c:1506 unmap_single_vma mm/memory.c:1551 [inline] unmap_vmas+0x25f/0x360 mm/memory.c:1583 exit_mmap+0x309/0x590 mm/mmap.c:3385 __mmput+0x93/0x2f0 kernel/fork.c:1153 mmput+0x4e/0x150 kernel/fork.c:1176 exit_mm kernel/exit.c:539 [inline] do_exit+0x9ec/0x2500 kernel/exit.c:859 do_group_exit+0x141/0x310 kernel/exit.c:986 __do_sys_exit_group kernel/exit.c:997 [inline] __se_sys_exit_group kernel/exit.c:995 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:995 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x61/0xcb RIP: 0033:0x7f902efee6c5 Code: Unable to access opcode bytes at RIP 0x7f902efee69b. RSP: 002b:00007ffefe4e0f98 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 00005602ca91f440 RCX: 00007f902efee6c5 RDX: 00000000000000e7 RSI: fffffffffffffe68 RDI: 0000000000000000 RBP: 00005602ca6ce2c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffefe4e0fe0 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 4fbfb7afe382d686 ]--- RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:29 [inline] RIP: 0010:atomic_read include/asm-generic/atomic-instrumented.h:28 [inline] RIP: 0010:lock_page_memcg+0xb7/0x1c0 mm/memcontrol.c:2153 Code: 00 00 49 89 c6 4c 8d b8 c0 09 00 00 4c 89 ff be 04 00 00 00 e8 8a db fc ff 4c 89 f8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df <0f> b6 04 08 84 c0 75 69 41 83 3f 00 0f 8e d1 00 00 00 4d 8d a6 d0 RSP: 0018:ffffc90003bdf830 EFLAGS: 00010202 ---------------- Code disassembly (best guess): 0: 00 00 add %al,(%rax) 2: 49 89 c6 mov %rax,%r14 5: 4c 8d b8 c0 09 00 00 lea 0x9c0(%rax),%r15 c: 4c 89 ff mov %r15,%rdi f: be 04 00 00 00 mov $0x4,%esi 14: e8 8a db fc ff call 0xfffcdba3 19: 4c 89 f8 mov %r15,%rax 1c: 48 c1 e8 03 shr $0x3,%rax 20: 48 b9 00 00 00 00 00 movabs $0xdffffc0000000000,%rcx 27: fc ff df * 2a: 0f b6 04 08 movzbl (%rax,%rcx,1),%eax <-- trapping instruction 2e: 84 c0 test %al,%al 30: 75 69 jne 0x9b 32: 41 83 3f 00 cmpl $0x0,(%r15) 36: 0f 8e d1 00 00 00 jle 0x10d 3c: 4d rex.WRB 3d: 8d .byte 0x8d 3e: a6 cmpsb %es:(%rdi),%ds:(%rsi) 3f: d0 .byte 0xd0