================================================================================
UBSAN: Undefined behaviour in net/core/gen_estimator.c:87:38
shift exponent -246 is negative
CPU: 1 PID: 16326 Comm: syz-executor.4 Not tainted 4.19.149-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: 0033:0x412f42
Code: 44 89 f8 41 8b 44 85 00 89 c2 31 c3 83 f0 3d c1 ea 10 89 df 31 d0 44 8d 47 04 8d 1c c0 89 d8 c1 e8 04 31 c3 69 c3 2d eb d4 27 <89> c3 c1 eb 0f 31 c3 89 f8 89 c6 81 e6 ff 1f 00 00 8b 14 b5 00 00
RSP: 002b:00007fff35593de0 EFLAGS: 00000a03 ORIG_RAX: ffffffffffffff13
RAX: 0000000070f4783b RBX: 00000000f0087207 RCX: 0000001b2ce20000
RDX: 000000000000ffff RSI: 000000000000030b RDI: 00000000a9b67e69
SQUASHFS error: squashfs_read_data failed to read block 0x0
RBP: 0000000000000679 R08: 00000000a9b67e6d R09: 0000000000000000
R10: 00007fff35593f70 R11: 0000000000000246 R12: 000000000118bfa8
R13: 00007f8b18036004 R14: 00007f8b18036000 R15: 0000000000001576
================================================================================
================================================================================
UBSAN: Undefined behaviour in net/core/gen_estimator.c:88:23
shift exponent 255 is too large for 64-bit type 'long long unsigned int'
CPU: 1 PID: 16326 Comm: syz-executor.4 Not tainted 4.19.149-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
squashfs: SQUASHFS error: unable to read xattr id index table
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+0xd6/0x126 net/core/gen_estimator.c:88
 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: 0033:0x412f42
Code: 44 89 f8 41 8b 44 85 00 89 c2 31 c3 83 f0 3d c1 ea 10 89 df 31 d0 44 8d 47 04 8d 1c c0 89 d8 c1 e8 04 31 c3 69 c3 2d eb d4 27 <89> c3 c1 eb 0f 31 c3 89 f8 89 c6 81 e6 ff 1f 00 00 8b 14 b5 00 00
RSP: 002b:00007fff35593de0 EFLAGS: 00000a03 ORIG_RAX: ffffffffffffff13
RAX: 0000000070f4783b RBX: 00000000f0087207 RCX: 0000001b2ce20000
RDX: 000000000000ffff RSI: 000000000000030b RDI: 00000000a9b67e69
RBP: 0000000000000679 R08: 00000000a9b67e6d R09: 0000000000000000
R10: 00007fff35593f70 R11: 0000000000000246 R12: 000000000118bfa8
R13: 00007f8b18036004 R14: 00007f8b18036000 R15: 0000000000001576
================================================================================
================================================================================
UBSAN: Undefined behaviour in net/core/gen_estimator.c:90:46
shift exponent -246 is negative
CPU: 1 PID: 16326 Comm: syz-executor.4 Not tainted 4.19.149-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: 0033:0x412f42
Code: 44 89 f8 41 8b 44 85 00 89 c2 31 c3 83 f0 3d c1 ea 10 89 df 31 d0 44 8d 47 04 8d 1c c0 89 d8 c1 e8 04 31 c3 69 c3 2d eb d4 27 <89> c3 c1 eb 0f 31 c3 89 f8 89 c6 81 e6 ff 1f 00 00 8b 14 b5 00 00
RSP: 002b:00007fff35593de0 EFLAGS: 00000a03 ORIG_RAX: ffffffffffffff13
RAX: 0000000070f4783b RBX: 00000000f0087207 RCX: 0000001b2ce20000
RDX: 000000000000ffff RSI: 000000000000030b RDI: 00000000a9b67e69
RBP: 0000000000000679 R08: 00000000a9b67e6d R09: 0000000000000000
R10: 00007fff35593f70 R11: 0000000000000246 R12: 000000000118bfa8
R13: 00007f8b18036004 R14: 00007f8b18036000 R15: 0000000000001576
================================================================================
================================================================================
UBSAN: Undefined behaviour in net/core/gen_estimator.c:91:22
shift exponent 255 is too large for 64-bit type 'long long unsigned int'
CPU: 1 PID: 16326 Comm: syz-executor.4 Not tainted 4.19.149-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+0x5b/0x126 net/core/gen_estimator.c:91
 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: 0033:0x412f42
Code: 44 89 f8 41 8b 44 85 00 89 c2 31 c3 83 f0 3d c1 ea 10 89 df 31 d0 44 8d 47 04 8d 1c c0 89 d8 c1 e8 04 31 c3 69 c3 2d eb d4 27 <89> c3 c1 eb 0f 31 c3 89 f8 89 c6 81 e6 ff 1f 00 00 8b 14 b5 00 00
RSP: 002b:00007fff35593de0 EFLAGS: 00000a03 ORIG_RAX: ffffffffffffff13
RAX: 0000000070f4783b RBX: 00000000f0087207 RCX: 0000001b2ce20000
RDX: 000000000000ffff RSI: 000000000000030b RDI: 00000000a9b67e69
RBP: 0000000000000679 R08: 00000000a9b67e6d R09: 0000000000000000
R10: 00007fff35593f70 R11: 0000000000000246 R12: 000000000118bfa8
R13: 00007f8b18036004 R14: 00007f8b18036000 R15: 0000000000001576
================================================================================
SQUASHFS error: squashfs_read_data failed to read block 0x0
nla_parse: 26 callbacks suppressed
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'.
squashfs: SQUASHFS error: unable to read xattr id index table
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'.
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'.
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 96 bytes leftover after parsing attributes in process `syz-executor.4'.
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 8 bytes leftover after parsing attributes in process `syz-executor.3'.
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
nla_parse: 31 callbacks suppressed
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 96 bytes leftover after parsing attributes in process `syz-executor.4'.
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 96 bytes leftover after parsing attributes in process `syz-executor.4'.
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
netlink: 96 bytes leftover after parsing attributes in process `syz-executor.4'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'.
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
netlink: 96 bytes leftover after parsing attributes in process `syz-executor.4'.
netlink: 24 bytes leftover after parsing attributes in process `syz-executor.3'.
netlink: 96 bytes leftover after parsing attributes in process `syz-executor.4'.
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
netlink: 96 bytes leftover after parsing attributes in process `syz-executor.4'.
SQUASHFS error: squashfs_read_data failed to read block 0x0
squashfs: SQUASHFS error: unable to read xattr id index table
squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on loop0
squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on loop0
squashfs: SQUASHFS error: Can't find a SQUASHFS superblock on loop0