do_group_exit+0x21c/0x2d0 kernel/exit.c:1105 get_signal+0x1285/0x1340 kernel/signal.c:3034 arch_do_signal_or_restart+0xa0/0x790 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop+0x72/0x130 kernel/entry/common.c:40 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x2bd/0xfa0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f ------------[ cut here ]------------ kernel BUG at mm/filemap.c:1530! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 6258 Comm: syz.4.95 Not tainted syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:folio_end_read+0x1e9/0x230 mm/filemap.c:1530 Code: 79 c7 ff 48 89 df 48 c7 c6 20 6d 74 8b e8 0f e1 2e ff 90 0f 0b e8 d7 79 c7 ff 48 89 df 48 c7 c6 40 63 74 8b e8 f8 e0 2e ff 90 <0f> 0b e8 c0 79 c7 ff 48 89 df 48 c7 c6 20 6d 74 8b e8 e1 e0 2e ff RSP: 0018:ffffc9000dd7e268 EFLAGS: 00010246 RAX: 6b472a5701a15c00 RBX: ffffea0001aa2200 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8d77b493 RDI: 00000000ffffffff RBP: 0000000000000000 R08: ffffffff8f7d6777 R09: 1ffffffff1efacee R10: dffffc0000000000 R11: fffffbfff1efacef R12: 1ffffd4000354441 R13: 1ffffd4000354440 R14: ffffea0001aa2208 R15: 00fff20000004060 FS: 00007fd2da98d6c0(0000) GS:ffff888125ee5000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffed13f0e5c CR3: 0000000075862000 CR4: 00000000003526f0 Call Trace: iomap_readahead+0x96a/0xbc0 fs/iomap/buffered-io.c:547 iomap_bio_readahead include/linux/iomap.h:608 [inline] erofs_readahead+0x1c3/0x3c0 fs/erofs/data.c:383 read_pages+0x17a/0x580 mm/readahead.c:163 page_cache_ra_order+0x924/0xe70 mm/readahead.c:518 filemap_readahead mm/filemap.c:2658 [inline] filemap_get_pages+0x7ff/0x1df0 mm/filemap.c:2704 filemap_read+0x3f6/0x11a0 mm/filemap.c:2800 __kernel_read+0x4cf/0x960 fs/read_write.c:530 integrity_kernel_read+0x89/0xd0 security/integrity/iint.c:28 ima_calc_file_hash_tfm security/integrity/ima/ima_crypto.c:480 [inline] ima_calc_file_shash security/integrity/ima/ima_crypto.c:511 [inline] ima_calc_file_hash+0x85e/0x16f0 security/integrity/ima/ima_crypto.c:568 ima_collect_measurement+0x428/0x8f0 security/integrity/ima/ima_api.c:293 process_measurement+0x1121/0x1a40 security/integrity/ima/ima_main.c:405 ima_file_check+0xd7/0x120 security/integrity/ima/ima_main.c:656 security_file_post_open+0xbb/0x290 security/security.c:2652 do_open fs/namei.c:3977 [inline] path_openat+0x2f26/0x3830 fs/namei.c:4134 do_filp_open+0x1fa/0x410 fs/namei.c:4161 do_sys_openat2+0x121/0x1c0 fs/open.c:1437 do_sys_open fs/open.c:1452 [inline] __do_sys_openat fs/open.c:1468 [inline] __se_sys_openat fs/open.c:1463 [inline] __x64_sys_openat+0x138/0x170 fs/open.c:1463 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fd2d9b8efc9 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fd2da98d038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 00007fd2d9de5fa0 RCX: 00007fd2d9b8efc9 RDX: 0000000000121140 RSI: 0000200000000000 RDI: ffffffffffffff9c RBP: 00007fd2d9c11f91 R08: 0000000000000000 R09: 0000000000000000 R10: 000000000000013d R11: 0000000000000246 R12: 0000000000000000 R13: 00007fd2d9de6038 R14: 00007fd2d9de5fa0 R15: 00007ffc588daef8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:folio_end_read+0x1e9/0x230 mm/filemap.c:1530 Code: 79 c7 ff 48 89 df 48 c7 c6 20 6d 74 8b e8 0f e1 2e ff 90 0f 0b e8 d7 79 c7 ff 48 89 df 48 c7 c6 40 63 74 8b e8 f8 e0 2e ff 90 <0f> 0b e8 c0 79 c7 ff 48 89 df 48 c7 c6 20 6d 74 8b e8 e1 e0 2e ff RSP: 0018:ffffc9000dd7e268 EFLAGS: 00010246 RAX: 6b472a5701a15c00 RBX: ffffea0001aa2200 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8d77b493 RDI: 00000000ffffffff RBP: 0000000000000000 R08: ffffffff8f7d6777 R09: 1ffffffff1efacee R10: dffffc0000000000 R11: fffffbfff1efacef R12: 1ffffd4000354441 R13: 1ffffd4000354440 R14: ffffea0001aa2208 R15: 00fff20000004060 FS: 00007fd2da98d6c0(0000) GS:ffff888125fe5000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f96349156c0 CR3: 0000000075862000 CR4: 00000000003526f0