EXT4-fs (loop2): mount failed
audit: type=1800 audit(1601789591.534:37): pid=13292 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.4" name="bus" dev="sda1" ino=16133 res=0
================================================================================
UBSAN: Undefined behaviour in arch/x86/kernel/uprobes.c:276:56
index 4 is out of range for type 'insn_byte_t [4]'
CPU: 1 PID: 13305 Comm: syz-executor.0 Not tainted 4.19.149-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x22c/0x33e lib/dump_stack.c:118
 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161
 __ubsan_handle_out_of_bounds.cold+0x63/0x6f lib/ubsan.c:383
 is_prefix_bad arch/x86/kernel/uprobes.c:276 [inline]
 uprobe_init_insn arch/x86/kernel/uprobes.c:299 [inline]
 arch_uprobe_analyze_insn+0x9d8/0xaa0 arch/x86/kernel/uprobes.c:868
 prepare_uprobe kernel/events/uprobes.c:611 [inline]
 install_breakpoint kernel/events/uprobes.c:654 [inline]
 uprobe_mmap+0x8c2/0xa70 kernel/events/uprobes.c:1096
 mmap_region+0x552/0x1510 mm/mmap.c:1803
 do_mmap+0x8e8/0x1080 mm/mmap.c:1530
 do_mmap_pgoff include/linux/mm.h:2326 [inline]
 vm_mmap_pgoff+0x197/0x200 mm/util.c:357
 ksys_mmap_pgoff+0x2d1/0x660 mm/mmap.c:1580
 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45de89
Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007fbf6b118c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 0000000000021400 RCX: 000000000045de89
RDX: 0000000000000000 RSI: 0000000000003000 RDI: 0000000020007000
RBP: 000000000118bf78 R08: 0000000000000003 R09: 0000000000000000
R10: 0000000000000412 R11: 0000000000000246 R12: 000000000118bf2c
R13: 00007fffa2e7240f R14: 00007fbf6b1199c0 R15: 000000000118bf2c
================================================================================
EXT4-fs error (device loop1): ext4_free_inode:350: comm syz-executor.1: bit already cleared for inode 12
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'.
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs (loop2): failed to parse options in superblock: X
audit: type=1800 audit(1601789592.024:38): pid=13315 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.4" name="bus" dev="sda1" ino=16198 res=0
EXT4-fs error (device loop2): ext4_fill_super:4448: inode #2: comm syz-executor.2: iget: root inode unallocated
EXT4-fs (loop2): get root inode failed
EXT4-fs (loop2): mount failed
EXT4-fs error (device loop1): ext4_empty_dir:2734: inode #12: comm syz-executor.1: Directory hole found for htree leaf block
EXT4-fs error (device loop1): ext4_free_inode:350: comm syz-executor.1: bit already cleared for inode 12
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'.
audit: type=1800 audit(1601789592.415:39): pid=13351 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.4" name="bus" dev="sda1" ino=16139 res=0
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs (loop2): failed to parse options in superblock: X
EXT4-fs error (device loop2): ext4_fill_super:4448: inode #2: comm syz-executor.2: iget: root inode unallocated
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'.
EXT4-fs (loop2): get root inode failed
EXT4-fs (loop2): mount failed
audit: type=1800 audit(1601789592.695:40): pid=13392 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.4" name="bus" dev="sda1" ino=16133 res=0
EXT4-fs error (device loop1): ext4_empty_dir:2734: inode #12: comm syz-executor.1: Directory hole found for htree leaf block
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'.
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs error (device loop1): ext4_free_inode:350: comm syz-executor.1: bit already cleared for inode 12
EXT4-fs (loop2): failed to parse options in superblock: X
audit: type=1800 audit(1601789592.995:41): pid=13428 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.4" name="bus" dev="sda1" ino=16140 res=0
EXT4-fs error (device loop2): ext4_fill_super:4448: inode #2: comm syz-executor.2: iget: root inode unallocated
EXT4-fs (loop2): get root inode failed
EXT4-fs (loop2): mount failed
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'.
EXT4-fs error (device loop1): ext4_empty_dir:2734: inode #12: comm syz-executor.1: Directory hole found for htree leaf block
audit: type=1800 audit(1601789593.265:42): pid=13461 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.4" name="bus" dev="sda1" ino=16133 res=0
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs error (device loop1): ext4_free_inode:350: comm syz-executor.1: bit already cleared for inode 12
EXT4-fs (loop2): failed to parse options in superblock: X
EXT4-fs error (device loop2): ext4_fill_super:4448: inode #2: comm syz-executor.2: iget: root inode unallocated
EXT4-fs (loop2): get root inode failed
EXT4-fs (loop2): mount failed
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.5'.
audit: type=1800 audit(1601789593.585:43): pid=13487 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.4" name="bus" dev="sda1" ino=16139 res=0
EXT4-fs error (device loop1): ext4_empty_dir:2734: inode #12: comm syz-executor.1: Directory hole found for htree leaf block
EXT4-fs error (device loop1): ext4_free_inode:350: comm syz-executor.1: bit already cleared for inode 12
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs (loop2): failed to parse options in superblock: X
EXT4-fs (loop2): corrupt root inode, run e2fsck
EXT4-fs (loop2): mount failed
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs (loop2): failed to parse options in superblock: X
netlink: 16 bytes leftover after parsing attributes in process `syz-executor.5'.
EXT4-fs (loop2): corrupt root inode, run e2fsck
audit: type=1800 audit(1601789594.105:44): pid=13532 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.4" name="bus" dev="sda1" ino=16222 res=0
EXT4-fs error (device loop1): ext4_empty_dir:2734: inode #12: comm syz-executor.1: Directory hole found for htree leaf block
EXT4-fs (loop2): mount failed
EXT4-fs error (device loop1): ext4_free_inode:350: comm syz-executor.1: bit already cleared for inode 12
netlink: 16 bytes leftover after parsing attributes in process `syz-executor.5'.
audit: type=1800 audit(1601789594.355:45): pid=13564 uid=0 auid=0 ses=4 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="syz-executor.4" name="bus" dev="sda1" ino=16202 res=0
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs (loop2): failed to parse options in superblock: X
EXT4-fs (loop2): corrupt root inode, run e2fsck
EXT4-fs error (device loop1): ext4_lookup:1593: inode #2: comm syz-executor.1: deleted inode referenced: 12
EXT4-fs (loop2): mount failed
netlink: 16 bytes leftover after parsing attributes in process `syz-executor.5'.
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs (loop2): failed to parse options in superblock: X
EXT4-fs error (device loop2): ext4_fill_super:4448: inode #2: comm syz-executor.2: iget: root inode unallocated
EXT4-fs error (device loop1): ext4_lookup:1593: inode #2: comm syz-executor.1: deleted inode referenced: 12
EXT4-fs (loop2): get root inode failed
EXT4-fs (loop2): mount failed
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs error (device loop1): ext4_lookup:1593: inode #2: comm syz-executor.1: deleted inode referenced: 12
EXT4-fs (loop2): failed to parse options in superblock: X
EXT4-fs error (device loop2): ext4_fill_super:4448: inode #2: comm syz-executor.2: iget: root inode unallocated
EXT4-fs (loop2): get root inode failed
EXT4-fs (loop2): mount failed
EXT4-fs error (device loop1): ext4_fill_super:4448: inode #2: comm syz-executor.1: iget: root inode unallocated
EXT4-fs (loop1): get root inode failed
EXT4-fs (loop1): mount failed
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs (loop2): failed to parse options in superblock: X
EXT4-fs error (device loop2): ext4_fill_super:4448: inode #2: comm syz-executor.2: iget: root inode unallocated
EXT4-fs (loop2): get root inode failed
EXT4-fs (loop2): mount failed
EXT4-fs error (device loop1): ext4_fill_super:4448: inode #2: comm syz-executor.1: iget: root inode unallocated
EXT4-fs (loop1): get root inode failed
EXT4-fs (loop1): mount failed
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs error (device loop1): ext4_fill_super:4448: inode #2: comm syz-executor.1: iget: root inode unallocated
EXT4-fs (loop2): failed to parse options in superblock: X
EXT4-fs (loop1): get root inode failed
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock
EXT4-fs (loop1): mount failed
EXT4-fs (loop2): group descriptors corrupted!
EXT4-fs error (device loop1): ext4_fill_super:4448: inode #2: comm syz-executor.1: iget: root inode unallocated
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs (loop2): failed to parse options in superblock: X
EXT4-fs (loop1): get root inode failed
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock
EXT4-fs (loop1): mount failed
EXT4-fs (loop2): group descriptors corrupted!
nla_parse: 2 callbacks suppressed
netlink: 16 bytes leftover after parsing attributes in process `syz-executor.5'.
EXT4-fs error (device loop1): ext4_fill_super:4448: inode #2: comm syz-executor.1: iget: root inode unallocated
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs (loop2): failed to parse options in superblock: X
EXT4-fs (loop1): get root inode failed
EXT4-fs (loop1): mount failed
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock
EXT4-fs (loop2): group descriptors corrupted!
netlink: 16 bytes leftover after parsing attributes in process `syz-executor.5'.
EXT4-fs error (device loop1): ext4_fill_super:4448: inode #2: comm syz-executor.1: iget: root inode unallocated
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs (loop1): get root inode failed
EXT4-fs (loop2): failed to parse options in superblock: X
EXT4-fs (loop1): mount failed
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock
EXT4-fs (loop2): group descriptors corrupted!
netlink: 16 bytes leftover after parsing attributes in process `syz-executor.5'.
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs error (device loop1): ext4_fill_super:4448: inode #2: comm syz-executor.1: iget: root inode unallocated
EXT4-fs (loop2): failed to parse options in superblock: X
EXT4-fs (loop1): get root inode failed
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock
EXT4-fs (loop1): mount failed
EXT4-fs (loop2): group descriptors corrupted!
EXT4-fs error (device loop1): ext4_fill_super:4448: inode #2: comm syz-executor.1: iget: root inode unallocated
netlink: 16 bytes leftover after parsing attributes in process `syz-executor.5'.
EXT4-fs (loop1): get root inode failed
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs (loop1): mount failed
EXT4-fs (loop2): failed to parse options in superblock: X
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock
EXT4-fs (loop2): group descriptors corrupted!
EXT4-fs error (device loop1): ext4_fill_super:4448: inode #2: comm syz-executor.1: iget: root inode unallocated
EXT4-fs (loop1): get root inode failed
EXT4-fs (loop1): mount failed
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs (loop2): failed to parse options in superblock: X
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock
EXT4-fs (loop2): group descriptors corrupted!
EXT4-fs error (device loop1): ext4_fill_super:4448: inode #2: comm syz-executor.1: iget: root inode unallocated
EXT4-fs (loop1): get root inode failed
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs (loop1): mount failed
EXT4-fs (loop2): failed to parse options in superblock: X
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock
EXT4-fs (loop2): group descriptors corrupted!
netlink: 16 bytes leftover after parsing attributes in process `syz-executor.5'.
EXT4-fs error (device loop1): ext4_fill_super:4448: inode #2: comm syz-executor.1: iget: root inode unallocated
EXT4-fs (loop1): get root inode failed
EXT4-fs (loop1): mount failed
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs (loop2): failed to parse options in superblock: X
EXT4-fs (loop2): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock
netlink: 16 bytes leftover after parsing attributes in process `syz-executor.5'.
EXT4-fs (loop2): group descriptors corrupted!
EXT4-fs error (device loop1): ext4_fill_super:4448: inode #2: comm syz-executor.1: iget: root inode unallocated
EXT4-fs (loop1): get root inode failed
EXT4-fs (loop1): mount failed
netlink: 16 bytes leftover after parsing attributes in process `syz-executor.5'.
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs (loop2): failed to parse options in superblock: X
EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps superblock
EXT4-fs (loop2): group descriptors corrupted!
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
EXT4-fs (loop2): failed to parse options in superblock: X
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps superblock
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
EXT4-fs (loop2): group descriptors corrupted!
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs (loop2): failed to parse options in superblock: X
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps superblock
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
EXT4-fs (loop2): group descriptors corrupted!
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
EXT4-fs mount: 16 callbacks suppressed
EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs (loop2): failed to parse options in superblock: X
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps superblock
EXT4-fs (loop2): group descriptors corrupted!
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs (loop2): failed to parse options in superblock: X
EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps superblock
EXT4-fs (loop2): group descriptors corrupted!
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs (loop2): failed to parse options in superblock: X
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps superblock
EXT4-fs (loop2): group descriptors corrupted!
EXT4-fs (loop1): mounted filesystem without journal. Opts: ,errors=continue
IPv6: ADDRCONF(NETDEV_CHANGE): vcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan0: link becomes ready
IPv6: ADDRCONF(NETDEV_CHANGE): vxcan1: link becomes ready
EXT4-fs (loop2): Unrecognized mount option "X" or missing value
EXT4-fs (loop2): failed to parse options in superblock: X
EXT4-fs (loop2): ext4_check_descriptors: Inode table for group 0 overlaps superblock