FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) general protection fault, probably for non-canonical address 0xdffffc0000000029: 0000 [#1] SMP KASAN NOPTI KASAN: null-ptr-deref in range [0x0000000000000148-0x000000000000014f] CPU: 1 PID: 7711 Comm: syz-executor.0 Not tainted 5.10.52 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014 RIP: 0010:io_sq_offload_start fs/io_uring.c:7995 [inline] RIP: 0010:io_disable_sqo_submit+0x1b1/0x230 fs/io_uring.c:8715 Code: e8 f4 01 bc ff 85 ed 0f 84 fc fe ff ff e8 77 08 bc ff 49 8d bd 48 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 64 49 8b ad 48 01 00 00 48 85 ed 0f 84 c9 fe ff ff RSP: 0018:ffff88804b147d70 EFLAGS: 00010212 RAX: dffffc0000000000 RBX: ffff8880425ab000 RCX: ffffc9001193d000 RDX: 0000000000000029 RSI: ffffffff81837cb9 RDI: 0000000000000148 RBP: 0000000000000002 R08: 0000000000000000 R09: ffff8880425ab3c7 R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880425ab3c0 R13: 0000000000000000 R14: ffff8880425ab048 R15: ffff8880425ab000 FS: 00007f941f4d7700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055c6ecbdcff8 CR3: 0000000049804000 CR4: 0000000000350ee0 Call Trace: io_uring_create fs/io_uring.c:9508 [inline] io_uring_setup+0x14e0/0x2ee0 fs/io_uring.c:9536 do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x466609 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:00007f941f4d7108 EFLAGS: 00000202 ORIG_RAX: 00000000000001a9 RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 0000000000466609 RDX: 0000000020ff0000 RSI: 0000000020000000 RDI: 0000000000005173 RBP: 0000000020000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000000 R13: 0000000020ff0000 R14: 0000000000000000 R15: 0000000020fff000 Modules linked in: ---[ end trace b21668cca77b0925 ]--- RIP: 0010:io_sq_offload_start fs/io_uring.c:7995 [inline] RIP: 0010:io_disable_sqo_submit+0x1b1/0x230 fs/io_uring.c:8715 Code: e8 f4 01 bc ff 85 ed 0f 84 fc fe ff ff e8 77 08 bc ff 49 8d bd 48 01 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 64 49 8b ad 48 01 00 00 48 85 ed 0f 84 c9 fe ff ff RSP: 0018:ffff88804b147d70 EFLAGS: 00010212 RAX: dffffc0000000000 RBX: ffff8880425ab000 RCX: ffffc9001193d000 RDX: 0000000000000029 RSI: ffffffff81837cb9 RDI: 0000000000000148 RBP: 0000000000000002 R08: 0000000000000000 R09: ffff8880425ab3c7 R10: 0000000000000000 R11: 0000000000000001 R12: ffff8880425ab3c0 R13: 0000000000000000 R14: ffff8880425ab048 R15: ffff8880425ab000 FS: 00007f941f4d7700(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055c6ecbdcff8 CR3: 0000000049804000 CR4: 0000000000350ee0 FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) audit: type=1326 audit(1627559000.515:29): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=7732 comm="syz-executor.2" exe="/syz-executor.2" sig=31 arch=c000003e syscall=202 compat=0 ip=0x466609 code=0x0 netlink: 12 bytes leftover after parsing attributes in process `syz-executor.7'. FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop4): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) audit: type=1326 audit(1627559000.679:30): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=7761 comm="syz-executor.2" exe="/syz-executor.2" sig=31 arch=c000003e syscall=202 compat=0 ip=0x466609 code=0x0 audit: type=1326 audit(1627559000.739:31): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=7776 comm="syz-executor.2" exe="/syz-executor.2" sig=31 arch=c000003e syscall=202 compat=0 ip=0x466609 code=0x0 audit: type=1326 audit(1627559000.850:32): auid=0 uid=0 gid=0 ses=4 subj=system_u:system_r:kernel_t:s0 pid=7792 comm="syz-executor.2" exe="/syz-executor.2" sig=31 arch=c000003e syscall=202 compat=0 ip=0x466609 code=0x0 EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue ext4 filesystem being mounted at /syzkaller-testdir957776419/syzkaller.35269T/150/file0 supports timestamps until 2038 (0x7fffffff) EXT4-fs error (device loop3): ext4_empty_dir:2876: inode #12: comm syz-executor.3: Directory hole found for htree leaf block EXT4-fs error (device loop3): ext4_free_inode:353: comm syz-executor.3: bit already cleared for inode 12 EXT4-fs error (device loop3) in ext4_free_inode:360: Corrupt filesystem EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue ext4 filesystem being mounted at /syzkaller-testdir957776419/syzkaller.35269T/151/file0 supports timestamps until 2038 (0x7fffffff) EXT4-fs error (device loop3): ext4_empty_dir:2876: inode #12: comm syz-executor.3: Directory hole found for htree leaf block EXT4-fs error (device loop3): ext4_free_inode:353: comm syz-executor.3: bit already cleared for inode 12 EXT4-fs error (device loop3) in ext4_free_inode:360: Corrupt filesystem EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue ext4 filesystem being mounted at /syzkaller-testdir957776419/syzkaller.35269T/152/file0 supports timestamps until 2038 (0x7fffffff) EXT4-fs error (device loop3): ext4_empty_dir:2876: inode #12: comm syz-executor.3: Directory hole found for htree leaf block EXT4-fs error (device loop3): ext4_free_inode:353: comm syz-executor.3: bit already cleared for inode 12 EXT4-fs error (device loop3) in ext4_free_inode:360: Corrupt filesystem EXT4-fs (loop7): mounted filesystem without journal. Opts: ,errors=continue EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue ext4 filesystem being mounted at /syzkaller-testdir994243470/syzkaller.RHiAT9/157/file0 supports timestamps until 2038 (0x7fffffff) ext4 filesystem being mounted at /syzkaller-testdir315942153/syzkaller.kLtifN/153/file0 supports timestamps until 2038 (0x7fffffff) EXT4-fs error (device loop7): ext4_empty_dir:2876: inode #12: comm syz-executor.7: Directory hole found for htree leaf block EXT4-fs error (device loop7): ext4_free_inode:353: comm syz-executor.7: bit already cleared for inode 12 EXT4-fs error (device loop1): ext4_empty_dir:2876: inode #12: comm syz-executor.1: Directory hole found for htree leaf block EXT4-fs error (device loop1): ext4_free_inode:353: comm syz-executor.1: bit already cleared for inode 12 EXT4-fs error (device loop7) in ext4_free_inode:360: Corrupt filesystem EXT4-fs error (device loop1) in ext4_free_inode:360: Corrupt filesystem EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue ext4 filesystem being mounted at /syzkaller-testdir957776419/syzkaller.35269T/153/file0 supports timestamps until 2038 (0x7fffffff) EXT4-fs error (device loop3): ext4_empty_dir:2876: inode #12: comm syz-executor.3: Directory hole found for htree leaf block EXT4-fs error (device loop3): ext4_free_inode:353: comm syz-executor.3: bit already cleared for inode 12 EXT4-fs error (device loop3) in ext4_free_inode:360: Corrupt filesystem EXT4-fs (loop7): mounted filesystem without journal. Opts: ,errors=continue ext4 filesystem being mounted at /syzkaller-testdir994243470/syzkaller.RHiAT9/158/file0 supports timestamps until 2038 (0x7fffffff) EXT4-fs error (device loop7): ext4_empty_dir:2876: inode #12: comm syz-executor.7: Directory hole found for htree leaf block EXT4-fs error (device loop7): ext4_free_inode:353: comm syz-executor.7: bit already cleared for inode 12 EXT4-fs error (device loop7) in ext4_free_inode:360: Corrupt filesystem EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue ext4 filesystem being mounted at /syzkaller-testdir315942153/syzkaller.kLtifN/154/file0 supports timestamps until 2038 (0x7fffffff) EXT4-fs (loop7): mounted filesystem without journal. Opts: ,errors=continue ext4 filesystem being mounted at /syzkaller-testdir994243470/syzkaller.RHiAT9/159/file0 supports timestamps until 2038 (0x7fffffff) EXT4-fs error (device loop1): ext4_empty_dir:2876: inode #12: comm syz-executor.1: Directory hole found for htree leaf block EXT4-fs error (device loop1): ext4_free_inode:353: comm syz-executor.1: bit already cleared for inode 12 EXT4-fs error (device loop1) in ext4_free_inode:360: Corrupt filesystem EXT4-fs error (device loop7): ext4_empty_dir:2876: inode #12: comm syz-executor.7: Directory hole found for htree leaf block EXT4-fs error (device loop7): ext4_free_inode:353: comm syz-executor.7: bit already cleared for inode 12 EXT4-fs error (device loop7) in ext4_free_inode:360: Corrupt filesystem EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue ext4 filesystem being mounted at /syzkaller-testdir315942153/syzkaller.kLtifN/155/file0 supports timestamps until 2038 (0x7fffffff) EXT4-fs error (device loop1): ext4_empty_dir:2876: inode #12: comm syz-executor.1: Directory hole found for htree leaf block EXT4-fs error (device loop1): ext4_free_inode:353: comm syz-executor.1: bit already cleared for inode 12 EXT4-fs error (device loop1) in ext4_free_inode:360: Corrupt filesystem FAT-fs (loop2): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop2): error, corrupted directory (invalid entries) FAT-fs (loop2): Filesystem has been set read-only FAT-fs (loop2): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) audit: type=1400 audit(1627559002.854:33): avc: denied { sys_admin } for pid=8166 comm="syz-executor.0" capability=21 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=cap_userns permissive=1 FAT-fs (loop2): error, corrupted directory (invalid entries) FAT-fs (loop2): Filesystem has been set read-only FAT-fs (loop2): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop2): error, corrupted directory (invalid entries) FAT-fs (loop2): Filesystem has been set read-only FAT-fs (loop2): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop2): error, corrupted directory (invalid entries) FAT-fs (loop2): Filesystem has been set read-only FAT-fs (loop1): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop1): error, corrupted directory (invalid entries) FAT-fs (loop1): Filesystem has been set read-only FAT-fs (loop1): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop1): error, corrupted directory (invalid entries) FAT-fs (loop1): Filesystem has been set read-only FAT-fs (loop1): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop1): error, corrupted directory (invalid entries) FAT-fs (loop1): Filesystem has been set read-only FAT-fs (loop7): bogus number of reserved sectors FAT-fs (loop7): Can't find a valid FAT filesystem FAT-fs (loop7): bogus number of reserved sectors FAT-fs (loop7): Can't find a valid FAT filesystem FAT-fs (loop6): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop7): bogus number of reserved sectors FAT-fs (loop7): Can't find a valid FAT filesystem FAT-fs (loop6): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop7): bogus number of reserved sectors FAT-fs (loop7): Can't find a valid FAT filesystem FAT-fs (loop6): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop6): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop1): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop6): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop7): bogus number of reserved sectors FAT-fs (loop7): Can't find a valid FAT filesystem FAT-fs (loop1): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop1): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop6): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop1): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop6): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop6): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1) FAT-fs (loop5): Invalid FSINFO signature: 0x00000000, 0x00000000 (sector = 1)