audit: type=1326 audit(1658956927.675:37): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=12167 comm="syz-executor.3" exe="/syz-executor.3" sig=31 arch=c000003e syscall=202 compat=0 ip=0x7ff0c73e2b19 code=0x0 ------------[ cut here ]------------ trying to isolate tail page WARNING: CPU: 1 PID: 12244 at mm/vmscan.c:1771 isolate_lru_page+0x718/0x8e0 mm/vmscan.c:1771 Modules linked in: CPU: 1 PID: 12244 Comm: syz-executor.7 Not tainted 5.10.123 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:isolate_lru_page+0x718/0x8e0 mm/vmscan.c:1771 Code: 84 e8 2c fc a3 00 31 ff 89 c3 89 c6 e8 c1 7b e7 ff 85 db 0f 84 dd f9 ff ff e8 44 82 e7 ff 48 c7 c7 20 0b 2c 84 e8 5e e9 77 02 <0f> 0b e9 c5 f9 ff ff e8 2c 82 e7 ff 48 8b 1c 24 48 83 eb 01 e9 ec RSP: 0018:ffff88804dae78b0 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff812929e3 RDI: ffffed1009b5cf08 RBP: ffffea000135a840 R08: 0000000000000001 R09: ffff88806cf27fdb R10: 0000000000000000 R11: 0000000000000001 R12: ffffea000135a848 R13: ffffea000135a834 R14: ffffea000135a801 R15: ffff88801c646008 FS: 00007faf3ab82700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 0000000045e10000 CR4: 0000000000350ee0 Call Trace: madvise_cold_or_pageout_pte_range+0x5ac/0xb30 mm/madvise.c:460 walk_pmd_range mm/pagewalk.c:89 [inline] walk_pud_range mm/pagewalk.c:160 [inline] walk_p4d_range mm/pagewalk.c:193 [inline] walk_pgd_range mm/pagewalk.c:229 [inline] __walk_page_range+0xe72/0x1db0 mm/pagewalk.c:331 walk_page_range+0x20c/0x400 mm/pagewalk.c:427 madvise_pageout_page_range mm/madvise.c:526 [inline] madvise_pageout+0x21b/0x390 mm/madvise.c:562 madvise_vma mm/madvise.c:938 [inline] do_madvise.part.0+0x4df/0x1a70 mm/madvise.c:1137 do_madvise mm/madvise.c:1163 [inline] __do_sys_madvise mm/madvise.c:1163 [inline] __se_sys_madvise mm/madvise.c:1161 [inline] __x64_sys_madvise+0x108/0x160 mm/madvise.c:1161 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x7faf3d62db19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007faf3ab82188 EFLAGS: 00000246 ORIG_RAX: 000000000000001c RAX: ffffffffffffffda RBX: 00007faf3d741020 RCX: 00007faf3d62db19 RDX: 0000000000000015 RSI: 0000000000003000 RDI: 0000000020000000 RBP: 00007faf3d687f6d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffa4abec9f R14: 00007faf3ab82300 R15: 0000000000022000 irq event stamp: 727 hardirqs last enabled at (735): [] console_unlock+0x929/0xb30 kernel/printk/printk.c:2561 hardirqs last disabled at (744): [] console_unlock+0x835/0xb30 kernel/printk/printk.c:2476 softirqs last enabled at (318): [] asm_call_irq_on_stack+0x12/0x20 softirqs last disabled at (267): [] asm_call_irq_on_stack+0x12/0x20 ---[ end trace 43a9cc9d16f05f0c ]---