NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 1024)
================================================================================
UBSAN: Undefined behaviour in net/core/gen_estimator.c:87:38
shift exponent -23 is negative
CPU: 1 PID: 6503 Comm: syz-executor.1 Not tainted 4.19.148-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __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_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422
 est_timer.cold+0x96/0x126 net/core/gen_estimator.c:87
 call_timer_fn+0x177/0x760 kernel/time/timer.c:1338
 expire_timers+0x243/0x500 kernel/time/timer.c:1375
 __run_timers kernel/time/timer.c:1703 [inline]
 run_timer_softirq+0x259/0x730 kernel/time/timer.c:1716
 __do_softirq+0x27d/0xad2 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x22d/0x270 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:544 [inline]
 smp_apic_timer_interrupt+0x15f/0x5d0 arch/x86/kernel/apic/apic.c:1094
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:lock_acquire+0x1ec/0x3f0 kernel/locking/lockdep.c:3910
Code: 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 dd 01 00 00 48 83 3d c9 9d 0b 08 00 0f 84 4e 01 00 00 48 8b 7c 24 08 57 9d <0f> 1f 44 00 00 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 65 8b
RSP: 0018:ffff88808acdfd58 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff12c7135 RBX: ffff8880a9b84340 RCX: 279b68de106ea3a0
RDX: dffffc0000000000 RSI: ffff8880a9b84bc8 RDI: 0000000000000286
RBP: ffff8880908b2e88 R08: 000000006967d43b R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
 __might_fault mm/memory.c:4638 [inline]
 __might_fault+0x152/0x1d0 mm/memory.c:4623
 _copy_from_user+0x29/0x130 lib/usercopy.c:10
 copy_from_user include/linux/uaccess.h:147 [inline]
 get_timespec64+0x75/0x120 kernel/time/time.c:862
 __do_sys_nanosleep kernel/time/hrtimer.c:1771 [inline]
 __se_sys_nanosleep kernel/time/hrtimer.c:1766 [inline]
 __x64_sys_nanosleep+0xab/0x220 kernel/time/hrtimer.c:1766
 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45c261
Code: 75 14 b8 23 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 34 cf fb ff c3 48 83 ec 08 e8 ea 46 00 00 48 89 04 24 b8 23 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 33 47 00 00 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007ffd7068ca60 EFLAGS: 00000293 ORIG_RAX: 0000000000000023
RAX: ffffffffffffffda RBX: 00000000000f1e16 RCX: 000000000045c261
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffd7068ca70
RBP: 0000000000001003 R08: 0000000000000000 R09: 00000000033fe940
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ffd7068cac0 R14: 00000000000f1e16 R15: 00007ffd7068cad0
================================================================================
================================================================================
UBSAN: Undefined behaviour in net/core/gen_estimator.c:90:46
shift exponent -23 is negative
CPU: 1 PID: 6503 Comm: syz-executor.1 Not tainted 4.19.148-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __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_shift_out_of_bounds.cold+0x1c4/0x250 lib/ubsan.c:422
 est_timer.cold+0x17/0x126 net/core/gen_estimator.c:90
 call_timer_fn+0x177/0x760 kernel/time/timer.c:1338
 expire_timers+0x243/0x500 kernel/time/timer.c:1375
 __run_timers kernel/time/timer.c:1703 [inline]
 run_timer_softirq+0x259/0x730 kernel/time/timer.c:1716
 __do_softirq+0x27d/0xad2 kernel/softirq.c:292
 invoke_softirq kernel/softirq.c:372 [inline]
 irq_exit+0x22d/0x270 kernel/softirq.c:412
 exiting_irq arch/x86/include/asm/apic.h:544 [inline]
 smp_apic_timer_interrupt+0x15f/0x5d0 arch/x86/kernel/apic/apic.c:1094
 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
 </IRQ>
RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline]
RIP: 0010:lock_acquire+0x1ec/0x3f0 kernel/locking/lockdep.c:3910
Code: 08 00 00 00 00 00 00 48 c1 e8 03 80 3c 10 00 0f 85 dd 01 00 00 48 83 3d c9 9d 0b 08 00 0f 84 4e 01 00 00 48 8b 7c 24 08 57 9d <0f> 1f 44 00 00 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e 41 5f c3 65 8b
RSP: 0018:ffff88808acdfd58 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
RAX: 1ffffffff12c7135 RBX: ffff8880a9b84340 RCX: 279b68de106ea3a0
RDX: dffffc0000000000 RSI: ffff8880a9b84bc8 RDI: 0000000000000286
RBP: ffff8880908b2e88 R08: 000000006967d43b R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000001 R15: 0000000000000001
 __might_fault mm/memory.c:4638 [inline]
 __might_fault+0x152/0x1d0 mm/memory.c:4623
 _copy_from_user+0x29/0x130 lib/usercopy.c:10
 copy_from_user include/linux/uaccess.h:147 [inline]
 get_timespec64+0x75/0x120 kernel/time/time.c:862
 __do_sys_nanosleep kernel/time/hrtimer.c:1771 [inline]
 __se_sys_nanosleep kernel/time/hrtimer.c:1766 [inline]
 __x64_sys_nanosleep+0xab/0x220 kernel/time/hrtimer.c:1766
 do_syscall_64+0xf9/0x670 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45c261
Code: 75 14 b8 23 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 34 cf fb ff c3 48 83 ec 08 e8 ea 46 00 00 48 89 04 24 b8 23 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 33 47 00 00 48 89 d0 48 83 c4 08 48 3d 01
RSP: 002b:00007ffd7068ca60 EFLAGS: 00000293 ORIG_RAX: 0000000000000023
RAX: ffffffffffffffda RBX: 00000000000f1e16 RCX: 000000000045c261
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffd7068ca70
RBP: 0000000000001003 R08: 0000000000000000 R09: 00000000033fe940
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000
R13: 00007ffd7068cac0 R14: 00000000000f1e16 R15: 00007ffd7068cad0
================================================================================
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 4096)
NILFS (loop5): mounting unchecked fs
NILFS (loop5): invalid segment: Checksum error in segment payload
NILFS (loop5): unable to fall back to spare super block
NILFS (loop5): error -22 while searching super root
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 1024)
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 4096)
NILFS (loop5): mounting unchecked fs
NILFS (loop5): invalid segment: Checksum error in segment payload
NILFS (loop5): unable to fall back to spare super block
NILFS (loop5): error -22 while searching super root
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 1024)
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 4096)
NILFS (loop5): mounting unchecked fs
NILFS (loop5): invalid segment: Checksum error in segment payload
NILFS (loop5): unable to fall back to spare super block
NILFS (loop5): error -22 while searching super root
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 1024)
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 4096)
NILFS (loop5): mounting unchecked fs
NILFS (loop5): invalid segment: Checksum error in segment payload
NILFS (loop5): unable to fall back to spare super block
NILFS (loop5): error -22 while searching super root
 loop3: p1 < > p2 p3 < p5 p6 > p4
loop3: partition table partially beyond EOD, truncated
loop3: p1 start 1 is beyond EOD, truncated
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 1024)
loop3: p2 size 1073741824 extends beyond EOD, truncated
loop3: p3 size 2 extends beyond EOD, truncated
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 4096)
NILFS (loop5): mounting unchecked fs
loop3: p4 size 32768 extends beyond EOD, truncated
NILFS (loop5): invalid segment: Checksum error in segment payload
NILFS (loop5): unable to fall back to spare super block
NILFS (loop5): error -22 while searching super root
loop3: p5 size 1073741824 extends beyond EOD, truncated
loop3: p6 size 32768 extends beyond EOD, truncated
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 1024)
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 4096)
NILFS (loop5): mounting unchecked fs
NILFS (loop5): invalid segment: Checksum error in segment payload
overlayfs: upperdir is in-use as upperdir/workdir of another mount, mount with '-o index=off' to override exclusive upperdir protection.
NILFS (loop5): unable to fall back to spare super block
NILFS (loop5): error -22 while searching super root
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 1024)
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 4096)
NILFS (loop5): mounting unchecked fs
NILFS (loop5): invalid segment: Checksum error in segment payload
NILFS (loop5): unable to fall back to spare super block
NILFS (loop5): error -22 while searching super root
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 1024)
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 4096)
NILFS (loop5): mounting unchecked fs
NILFS (loop5): invalid segment: Checksum error in segment payload
NILFS (loop5): unable to fall back to spare super block
NILFS (loop5): error -22 while searching super root
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 1024)
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 4096)
NILFS (loop5): mounting unchecked fs
NILFS (loop5): invalid segment: Checksum error in segment payload
NILFS (loop5): unable to fall back to spare super block
NILFS (loop5): error -22 while searching super root
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 1024)
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 4096)
NILFS (loop5): mounting unchecked fs
NILFS (loop5): invalid segment: Checksum error in segment payload
NILFS (loop5): unable to fall back to spare super block
NILFS (loop5): error -22 while searching super root
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 1024)
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 4096)
NILFS (loop5): mounting unchecked fs
NILFS (loop5): invalid segment: Checksum error in segment payload
EXT4-fs (loop3): mounted filesystem without journal. Opts: ,errors=continue
NILFS (loop5): unable to fall back to spare super block
EXT4-fs error (device loop3): ext4_empty_dir:2739: inode #12: block 255: comm syz-executor.3: bad entry in directory: rec_len is smaller than minimal - offset=0, inode=0, rec_len=0, name_len=0, size=1024
NILFS (loop5): error -22 while searching super root
EXT4-fs warning (device loop3): ext4_empty_dir:2742: inode #12: comm syz-executor.3: directory missing '.'
EXT4-fs error (device loop3): ext4_validate_block_bitmap:392: comm syz-executor.3: bg 0: block 3: invalid block bitmap
EXT4-fs error (device loop3) in ext4_free_blocks:4964: Corrupt filesystem
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 1024)
EXT4-fs error (device loop3): ext4_free_inode:350: comm syz-executor.3: bit already cleared for inode 12
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 4096)
NILFS (loop5): mounting unchecked fs
NILFS (loop5): invalid segment: Checksum error in segment payload
NILFS (loop5): unable to fall back to spare super block
NILFS (loop5): error -22 while searching super root
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 1024)
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 4096)
NILFS (loop5): mounting unchecked fs
NILFS (loop5): invalid segment: Checksum error in segment payload
NILFS (loop5): unable to fall back to spare super block
NILFS (loop5): error -22 while searching super root
UDF-fs: warning (device loop3): udf_fill_super: No fileset found
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 1024)
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 4096)
NILFS (loop5): mounting unchecked fs
NILFS (loop5): invalid segment: Checksum error in segment payload
NILFS (loop5): unable to fall back to spare super block
NILFS (loop5): error -22 while searching super root
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 1024)
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 4096)
UDF-fs: warning (device loop3): udf_fill_super: No fileset found
NILFS (loop5): mounting unchecked fs
NILFS (loop5): invalid segment: Checksum error in segment payload
NILFS (loop5): unable to fall back to spare super block
NILFS (loop5): error -22 while searching super root
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 1024)
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 4096)
NILFS (loop5): mounting unchecked fs
NILFS (loop5): invalid segment: Checksum error in segment payload
UDF-fs: warning (device loop3): udf_fill_super: No fileset found
NILFS (loop5): unable to fall back to spare super block
NILFS (loop5): error -22 while searching super root
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 1024)
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 4096)
NILFS (loop5): mounting unchecked fs
NILFS (loop5): invalid segment: Checksum error in segment payload
NILFS (loop5): unable to fall back to spare super block
NILFS (loop5): error -22 while searching super root
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'.
UDF-fs: warning (device loop3): udf_fill_super: No fileset found
netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'.
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 1024)
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 4096)
NILFS (loop5): mounting unchecked fs
NILFS (loop5): invalid segment: Checksum error in segment payload
NILFS (loop5): unable to fall back to spare super block
NILFS (loop5): error -22 while searching super root
xt_NFQUEUE: number of total queues is 0
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 1024)
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 4096)
NILFS (loop5): mounting unchecked fs
NILFS (loop5): invalid segment: Checksum error in segment payload
NILFS (loop5): unable to fall back to spare super block
NILFS (loop5): error -22 while searching super root
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 1024)
NILFS (loop5): broken superblock, retrying with spare superblock (blocksize = 4096)
NILFS (loop5): mounting unchecked fs
NILFS (loop5): invalid segment: Checksum error in segment payload
NILFS (loop5): unable to fall back to spare super block
NILFS (loop5): error -22 while searching super root