page:ffffea0005e00000 is uninitialized and poisoned page dumped because: VM_BUG_ON_PAGE(PagePoisoned(page)) There is not page extension available. ------------[ cut here ]------------ kernel BUG at ./include/linux/mm.h:2571! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 5866 Comm: syz.2.24 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026 RIP: 0010:page_to_nid include/linux/mm.h:2571 [inline] RIP: 0010:page_zone include/linux/mm.h:2791 [inline] RIP: 0010:mark_free_pages+0x49e/0x4b0 kernel/power/snapshot.c:1267 Code: 5d e9 46 dc 48 0a e8 d1 0e 23 00 90 0f 0b e8 a9 11 46 0a e8 c4 0e 23 00 48 8b 7c 24 08 48 c7 c6 e4 ac 4a 8e e8 b3 aa 82 ff 90 <0f> 0b e8 ab 0e 23 00 90 0f 0b e8 a3 0e 23 00 90 0f 0b 90 90 90 90 RSP: 0018:ffffc90004c2fad8 EFLAGS: 00010046 RAX: 654e4eecec8fdd00 RBX: 0000000000008000 RCX: 654e4eecec8fdd00 RDX: ffffc90005f83000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: 0000000000000000 R08: ffffffff8f695e03 R09: 1ffffffff1ed2bc0 R10: dffffc0000000000 R11: fffffbfff1ed2bc1 R12: ffff88823fff8280 R13: 0000000000178000 R14: ffffffffffffffff R15: 0300000000000000 FS: 00007f3504a966c0(0000) GS:ffff888124dbd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00002000000034c0 CR3: 000000007480e000 CR4: 00000000003526f0 Call Trace: count_data_pages kernel/power/snapshot.c:1418 [inline] hibernate_preallocate_memory+0x14f/0x750 kernel/power/snapshot.c:1860 hibernation_snapshot+0xd5/0x3d0 kernel/power/hibernate.c:422 hibernate+0x29f/0x6a0 kernel/power/hibernate.c:819 state_store+0x234/0x290 kernel/power/main.c:821 kernfs_fop_write_iter+0x3a4/0x540 fs/kernfs/file.c:345 new_sync_write fs/read_write.c:595 [inline] vfs_write+0x612/0xba0 fs/read_write.c:687 ksys_write+0x150/0x270 fs/read_write.c:739 do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline] do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f3503b9e159 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f3504a96028 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f3503e25fa0 RCX: 00007f3503b9e159 RDX: 0000000000000004 RSI: 0000200000000100 RDI: 0000000000000003 RBP: 00007f3503c3506b R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f3503e26038 R14: 00007f3503e25fa0 R15: 00007ffedfcd3f48 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:page_to_nid include/linux/mm.h:2571 [inline] RIP: 0010:page_zone include/linux/mm.h:2791 [inline] RIP: 0010:mark_free_pages+0x49e/0x4b0 kernel/power/snapshot.c:1267 Code: 5d e9 46 dc 48 0a e8 d1 0e 23 00 90 0f 0b e8 a9 11 46 0a e8 c4 0e 23 00 48 8b 7c 24 08 48 c7 c6 e4 ac 4a 8e e8 b3 aa 82 ff 90 <0f> 0b e8 ab 0e 23 00 90 0f 0b e8 a3 0e 23 00 90 0f 0b 90 90 90 90 RSP: 0018:ffffc90004c2fad8 EFLAGS: 00010046 RAX: 654e4eecec8fdd00 RBX: 0000000000008000 RCX: 654e4eecec8fdd00 RDX: ffffc90005f83000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: 0000000000000000 R08: ffffffff8f695e03 R09: 1ffffffff1ed2bc0 R10: dffffc0000000000 R11: fffffbfff1ed2bc1 R12: ffff88823fff8280 R13: 0000000000178000 R14: ffffffffffffffff R15: 0300000000000000 FS: 00007f3504a966c0(0000) GS:ffff888124dbd000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00002000000034c0 CR3: 000000007480e000 CR4: 00000000003526f0