loop1: rw=0, want=6756799, limit=112 Buffer I/O error on dev loop1, logical block 6756798, async page read attempt to access beyond end of device loop1: rw=0, want=575895, limit=112 Buffer I/O error on dev loop1, logical block 575894, async page read BUG: sleeping function called from invalid context at fs/buffer.c:1381 in_atomic(): 1, irqs_disabled(): 0, pid: 12366, name: syz-executor.1 2 locks held by syz-executor.1/12366: #0: (&type->i_mutex_dir_key#10){.+.+}, at: [] inode_lock_shared include/linux/fs.h:729 [inline] #0: (&type->i_mutex_dir_key#10){.+.+}, at: [] lookup_slow+0x129/0x400 fs/namei.c:1674 #1: (pointers_lock){.+.+}, at: [] get_block+0x153/0x1230 fs/sysv/itree.c:217 Preemption disabled at: [< (null)>] (null) CPU: 0 PID: 12366 Comm: syz-executor.1 Not tainted 4.14.299-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 ___might_sleep.cold+0x235/0x250 kernel/sched/core.c:6041 __getblk_gfp fs/buffer.c:1381 [inline] __bread_gfp+0x3e/0x2e0 fs/buffer.c:1428 sb_bread include/linux/buffer_head.h:343 [inline] get_branch+0x2ac/0x600 fs/sysv/itree.c:104 get_block+0x176/0x1230 fs/sysv/itree.c:218 block_read_full_page+0x25e/0x8d0 fs/buffer.c:2316 do_read_cache_page+0x38e/0xc10 mm/filemap.c:2713 read_mapping_page include/linux/pagemap.h:398 [inline] dir_get_page fs/sysv/dir.c:58 [inline] sysv_find_entry+0x20d/0x610 fs/sysv/dir.c:146 sysv_inode_by_name+0x5b/0x330 fs/sysv/dir.c:360 sysv_lookup fs/sysv/namei.c:53 [inline] sysv_lookup+0x64/0xe0 fs/sysv/namei.c:46 lookup_slow+0x20a/0x400 fs/namei.c:1696 walk_component+0x6a1/0xbc0 fs/namei.c:1825 lookup_last fs/namei.c:2293 [inline] path_lookupat+0x1bb/0x780 fs/namei.c:2343 filename_lookup+0x18a/0x510 fs/namei.c:2377 user_path include/linux/namei.h:62 [inline] do_mount+0x118/0x2a30 fs/namespace.c:2845 SYSC_mount fs/namespace.c:3121 [inline] SyS_mount+0xa8/0x120 fs/namespace.c:3098 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 attempt to access beyond end of device syz-executor.4 (12410) used greatest stack depth: 24104 bytes left loop1: rw=0, want=10310910, limit=112 Buffer I/O error on dev loop1, logical block 10310909, async page read attempt to access beyond end of device loop1: rw=0, want=9216536, limit=112 Buffer I/O error on dev loop1, logical block 9216535, async page read Restarting kernel threads ... done. xt_connlimit: cannot load conntrack support for address family 10 overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. Restarting kernel threads ... done. overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. EXT4-fs (loop5): ext4_check_descriptors: Checksum for group 0 failed (33325!=0) EXT4-fs (loop5): group descriptors corrupted! Restarting kernel threads ... done. gfs2: can't find protocol k_Bc)%:~?dМ3WɌ1Qc㒢b»4/QS̾ loUeL"{9L/L"& audit: type=1804 audit(1668711788.180:50): pid=12549 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.0" name="/root/syzkaller-testdir614838962/syzkaller.KqSAUE/113/bus" dev="sda1" ino=14287 res=1 audit: type=1800 audit(1668711788.210:51): pid=12549 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.0" name="bus" dev="sda1" ino=14287 res=0 Restarting kernel threads ... done. EXT4-fs (loop5): ext4_check_descriptors: Checksum for group 0 failed (33325!=0) EXT4-fs (loop5): group descriptors corrupted! audit: type=1804 audit(1668711789.000:52): pid=12604 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.0" name="/root/syzkaller-testdir614838962/syzkaller.KqSAUE/114/bus" dev="sda1" ino=14268 res=1 audit: type=1800 audit(1668711789.000:53): pid=12604 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.0" name="bus" dev="sda1" ino=14268 res=0 audit: type=1804 audit(1668711789.670:54): pid=12643 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.0" name="/root/syzkaller-testdir614838962/syzkaller.KqSAUE/115/bus" dev="sda1" ino=14303 res=1 audit: type=1800 audit(1668711789.700:55): pid=12643 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.0" name="bus" dev="sda1" ino=14303 res=0 EXT4-fs (loop5): ext4_check_descriptors: Checksum for group 0 failed (33325!=0) EXT4-fs (loop5): group descriptors corrupted! audit: type=1804 audit(1668711790.340:56): pid=12689 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.0" name="/root/syzkaller-testdir614838962/syzkaller.KqSAUE/116/bus" dev="sda1" ino=14305 res=1 audit: type=1800 audit(1668711790.340:57): pid=12689 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.0" name="bus" dev="sda1" ino=14305 res=0 EXT4-fs (loop5): ext4_check_descriptors: Checksum for group 0 failed (33325!=0) EXT4-fs (loop5): group descriptors corrupted! EXT4-fs (loop3): bad geometry: block count 258 exceeds size of device (256 blocks) EXT4-fs (loop4): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop5): bad geometry: block count 258 exceeds size of device (256 blocks) EXT4-fs (loop3): bad geometry: block count 258 exceeds size of device (256 blocks) print_req_error: 36 callbacks suppressed print_req_error: I/O error, dev loop5, sector 0 Buffer I/O error on dev loop5, logical block 0, async page read print_req_error: I/O error, dev loop5, sector 4 Buffer I/O error on dev loop5, logical block 2, async page read print_req_error: I/O error, dev loop5, sector 6 Buffer I/O error on dev loop5, logical block 3, async page read EXT4-fs (loop5): bad geometry: block count 258 exceeds size of device (256 blocks) EXT4-fs (loop3): bad geometry: block count 258 exceeds size of device (256 blocks)