------------[ cut here ]------------ kernel BUG at ./include/linux/pagemap.h:1437! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 11126 Comm: syz.4.2274 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:__readahead_folio include/linux/pagemap.h:1437 [inline] RIP: 0010:readahead_folio include/linux/pagemap.h:1463 [inline] RIP: 0010:mpage_readahead+0x5a1/0x740 fs/mpage.c:367 Code: 01 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc e8 02 23 6c ff 48 89 df e8 aa 3d a9 ff e9 c2 fd ff ff e8 f0 22 6c ff 90 <0f> 0b 4c 8b 7c 24 20 e9 3c ff ff ff e8 de 22 6c ff 48 c7 c6 60 ef RSP: 0018:ffffc9000c9472a8 EFLAGS: 00010287 RAX: 000000000007acac RBX: 0000000000000010 RCX: ffffc9002af90000 RDX: 0000000000080000 RSI: ffffffff829add50 RDI: ffff8880234c0000 RBP: 0000000000000001 R08: 0000000000000004 R09: 0000000000000010 R10: 0000000000000001 R11: 0000000000000000 R12: dffffc0000000000 R13: 1ffff92001928eea R14: ffffc9000c947730 R15: 0000000000000000 FS: 00007fcdf05b26c0(0000) GS:ffff8880d65dc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcdf05b1ff8 CR3: 0000000027979000 CR4: 0000000000352ef0 Call Trace: read_pages+0x1b1/0xdf0 mm/readahead.c:163 page_cache_ra_unbounded+0x5d2/0x940 mm/readahead.c:269 do_page_cache_ra mm/readahead.c:332 [inline] page_cache_sync_ra+0xa9b/0xbb0 mm/readahead.c:611 do_sync_mmap_readahead mm/filemap.c:3329 [inline] filemap_fault+0x2bec/0x37c0 mm/filemap.c:3549 __do_fault+0x10d/0x550 mm/memory.c:5323 do_shared_fault mm/memory.c:5822 [inline] do_fault+0x2db/0x1990 mm/memory.c:5896 do_pte_missing mm/memory.c:4404 [inline] handle_pte_fault mm/memory.c:6276 [inline] __handle_mm_fault+0x1807/0x2b50 mm/memory.c:6414 handle_mm_fault+0x36d/0xa20 mm/memory.c:6583 faultin_page mm/gup.c:1126 [inline] __get_user_pages+0xf9c/0x34d0 mm/gup.c:1428 __get_user_pages_locked mm/gup.c:1692 [inline] faultin_page_range+0x1f1/0x9e0 mm/gup.c:1912 madvise_populate mm/madvise.c:976 [inline] madvise_do_behavior+0x354/0x510 mm/madvise.c:1935 do_madvise+0x195/0x240 mm/madvise.c:2030 __do_sys_madvise mm/madvise.c:2039 [inline] __se_sys_madvise mm/madvise.c:2037 [inline] __x64_sys_madvise+0xa9/0x110 mm/madvise.c:2037 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xc9/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcdef79acb9 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:00007fcdf05b2028 EFLAGS: 00000246 ORIG_RAX: 000000000000001c RAX: ffffffffffffffda RBX: 00007fcdefa15fa0 RCX: 00007fcdef79acb9 RDX: 0000000000000017 RSI: 0000000000c00000 RDI: 0000200000000000 RBP: 00007fcdef808bf7 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fcdefa16038 R14: 00007fcdefa15fa0 R15: 00007ffc7ee9aa28 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__readahead_folio include/linux/pagemap.h:1437 [inline] RIP: 0010:readahead_folio include/linux/pagemap.h:1463 [inline] RIP: 0010:mpage_readahead+0x5a1/0x740 fs/mpage.c:367 Code: 01 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 cc cc cc cc e8 02 23 6c ff 48 89 df e8 aa 3d a9 ff e9 c2 fd ff ff e8 f0 22 6c ff 90 <0f> 0b 4c 8b 7c 24 20 e9 3c ff ff ff e8 de 22 6c ff 48 c7 c6 60 ef RSP: 0018:ffffc9000c9472a8 EFLAGS: 00010287 RAX: 000000000007acac RBX: 0000000000000010 RCX: ffffc9002af90000 RDX: 0000000000080000 RSI: ffffffff829add50 RDI: ffff8880234c0000 RBP: 0000000000000001 R08: 0000000000000004 R09: 0000000000000010 R10: 0000000000000001 R11: 0000000000000000 R12: dffffc0000000000 R13: 1ffff92001928eea R14: ffffc9000c947730 R15: 0000000000000000 FS: 00007fcdf05b26c0(0000) GS:ffff8880d65dc000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcdf05b1ff8 CR3: 0000000027979000 CR4: 0000000000352ef0