Extracting prog: 1m8.728530937s
Minimizing prog: 6m17.74678078s
Simplifying prog options: 2m16.961536817s
Extracting C: 26.676230521s
Simplifying C: 0s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-lsetxattr
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1ff)
mount(&(0x7f0000000200)=@filename='mtd0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000300)='jffs2\x00', 0x800000, 0x0)
lsetxattr(&(0x7f0000000140)='./file0\x00', &(0x7f0000000000)=@known='user.syz\x00', 0x0, 0x0, 0x0)

program crashed: kernel BUG in jffs2_del_ino_cache
program crashed: kernel BUG in jffs2_del_ino_cache
single: successfully extracted reproducer
found reproducer with 3 syscalls
minimizing guilty program
testing program (duration=35.909041245s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1ff)
mount(&(0x7f0000000200)=@filename='mtd0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000300)='jffs2\x00', 0x800000, 0x0)

program did not crash
testing program (duration=35.909041245s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-lsetxattr
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1ff)
lsetxattr(&(0x7f0000000140)='./file0\x00', &(0x7f0000000000)=@known='user.syz\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=35.909041245s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount-lsetxattr
detailed listing:
executing program 0:
mount(&(0x7f0000000200)=@filename='mtd0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000300)='jffs2\x00', 0x800000, 0x0)
lsetxattr(&(0x7f0000000140)='./file0\x00', &(0x7f0000000000)=@known='user.syz\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=35.909041245s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-lsetxattr
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(&(0x7f0000000200)=@filename='mtd0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000300)='jffs2\x00', 0x800000, 0x0)
lsetxattr(&(0x7f0000000140)='./file0\x00', &(0x7f0000000000)=@known='user.syz\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=35.909041245s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-lsetxattr
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./file0\x00', &(0x7f0000000300)='jffs2\x00', 0x800000, 0x0)
lsetxattr(&(0x7f0000000140)='./file0\x00', &(0x7f0000000000)=@known='user.syz\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=35.909041245s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-lsetxattr
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1ff)
mount(&(0x7f0000000200)=@filename='mtd0\x00', 0x0, &(0x7f0000000300)='jffs2\x00', 0x800000, 0x0)
lsetxattr(&(0x7f0000000140)='./file0\x00', &(0x7f0000000000)=@known='user.syz\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=35.909041245s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-lsetxattr
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1ff)
mount(&(0x7f0000000200)=@filename='mtd0\x00', &(0x7f0000000100)='./file0\x00', 0x0, 0x800000, 0x0)
lsetxattr(&(0x7f0000000140)='./file0\x00', &(0x7f0000000000)=@known='user.syz\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=35.909041245s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-lsetxattr
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1ff)
mount(&(0x7f0000000200)=@filename='mtd0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000300)='jffs2\x00', 0x800000, 0x0)
lsetxattr(0x0, &(0x7f0000000000)=@known='user.syz\x00', 0x0, 0x0, 0x0)

program did not crash
testing program (duration=35.909041245s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-lsetxattr
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1ff)
mount(&(0x7f0000000200)=@filename='mtd0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000300)='jffs2\x00', 0x800000, 0x0)
lsetxattr(&(0x7f0000000140)='./file0\x00', 0x0, 0x0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=35.909041245s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-lsetxattr
program did not crash
simplifying guilty program options
testing program (duration=35.909041245s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-lsetxattr
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1ff)
mount(&(0x7f0000000200)=@filename='mtd0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000300)='jffs2\x00', 0x800000, 0x0)
lsetxattr(&(0x7f0000000140)='./file0\x00', &(0x7f0000000000)=@known='user.syz\x00', 0x0, 0x0, 0x0)

program crashed: kernel BUG in jffs2_del_ino_cache
extracting C reproducer
testing compiled C program (duration=35.909041245s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-lsetxattr
program did not crash
testing program (duration=35.909041245s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-lsetxattr
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1ff)
mount(&(0x7f0000000200)=@filename='mtd0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000300)='jffs2\x00', 0x800000, 0x0)
lsetxattr(&(0x7f0000000140)='./file0\x00', &(0x7f0000000000)=@known='user.syz\x00', 0x0, 0x0, 0x0)

program crashed: kernel BUG in jffs2_del_ino_cache
extracting C reproducer
testing compiled C program (duration=35.909041245s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-lsetxattr
program did not crash
testing program (duration=35.909041245s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-lsetxattr
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1ff)
mount(&(0x7f0000000200)=@filename='mtd0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000300)='jffs2\x00', 0x800000, 0x0)
lsetxattr(&(0x7f0000000140)='./file0\x00', &(0x7f0000000000)=@known='user.syz\x00', 0x0, 0x0, 0x0)

program crashed: kernel BUG in jffs2_del_ino_cache
validation run: crashed=true
testing program (duration=35.909041245s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-lsetxattr
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1ff)
mount(&(0x7f0000000200)=@filename='mtd0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000300)='jffs2\x00', 0x800000, 0x0)
lsetxattr(&(0x7f0000000140)='./file0\x00', &(0x7f0000000000)=@known='user.syz\x00', 0x0, 0x0, 0x0)

program crashed: kernel BUG in jffs2_del_ino_cache
validation run: crashed=true
testing program (duration=35.909041245s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-lsetxattr
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000100)='./file0\x00', 0x1ff)
mount(&(0x7f0000000200)=@filename='mtd0\x00', &(0x7f0000000100)='./file0\x00', &(0x7f0000000300)='jffs2\x00', 0x800000, 0x0)
lsetxattr(&(0x7f0000000140)='./file0\x00', &(0x7f0000000000)=@known='user.syz\x00', 0x0, 0x0, 0x0)

program crashed: kernel BUG in jffs2_del_ino_cache
validation run: crashed=true
reproducing took 12m1.697420076s
repro crashed as (corrupted=false):
------------[ cut here ]------------
kernel BUG at fs/jffs2/nodelist.c:462!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5850 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:jffs2_del_ino_cache+0x24f/0x2c0 fs/jffs2/nodelist.c:462
Code: 4c 89 e2 49 8b 5e 18 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 75 71 49 89 1c 24 e9 42 ff ff ff e8 e2 89 84 fe 90 <0f> 0b e8 9a 5d f7 fe e9 5b fe ff ff e8 60 5d f7 fe e9 59 ff ff ff
RSP: 0018:ffffc90003857a90 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88803703a000 RCX: 0000000000000000
RDX: ffff888033dca580 RSI: ffffffff838677ee RDI: ffff88805329dee0
RBP: 0000000000000006 R08: 0000000000000000 R09: ffffed1006e0746c
R10: ffff88803703a363 R11: 0000000000000000 R12: ffff888047193c80
R13: dffffc0000000000 R14: ffff88805329dec0 R15: ffff888047193d30
FS:  0000555588599500(0000) GS:ffff8880d5ba2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2be8270000 CR3: 0000000054357000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 jffs2_do_clear_inode+0x3ca/0x470 fs/jffs2/readinode.c:1443
 evict+0x3c2/0xad0 fs/inode.c:822
 dispose_list+0x117/0x1e0 fs/inode.c:864
 evict_inodes+0x582/0x6f0 fs/inode.c:918
 generic_shutdown_super+0xc8/0x360 fs/super.c:755
 kill_mtd_super+0x1d/0x80 drivers/mtd/mtdsuper.c:174
 jffs2_kill_sb+0x7c/0xb0 fs/jffs2/super.c:350
 deactivate_locked_super+0xbd/0x140 fs/super.c:603
 deactivate_super fs/super.c:632 [inline]
 deactivate_super+0xea/0x110 fs/super.c:628
 cleanup_mnt+0x21f/0x450 fs/namespace.c:1317
 task_work_run+0x150/0x240 kernel/task_work.c:233
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 __exit_to_user_mode_loop kernel/entry/common.c:70 [inline]
 exit_to_user_mode_loop+0x1d8/0x700 kernel/entry/common.c:101
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:336 [inline]
 do_syscall_64+0x661/0x790 arch/x86/entry/syscall_64.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2be839f317
Code: a2 c7 05 dc 43 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffca620e3b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f2be8434474 RCX: 00007f2be839f317
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffca620e470
RBP: 00007ffca620e470 R08: 00007ffca620f470 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffca620f500
R13: 00007f2be8434474 R14: 000000000000d851 R15: 00007ffca620f540
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:jffs2_del_ino_cache+0x24f/0x2c0 fs/jffs2/nodelist.c:462
Code: 4c 89 e2 49 8b 5e 18 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 75 71 49 89 1c 24 e9 42 ff ff ff e8 e2 89 84 fe 90 <0f> 0b e8 9a 5d f7 fe e9 5b fe ff ff e8 60 5d f7 fe e9 59 ff ff ff
RSP: 0018:ffffc90003857a90 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88803703a000 RCX: 0000000000000000
RDX: ffff888033dca580 RSI: ffffffff838677ee RDI: ffff88805329dee0
RBP: 0000000000000006 R08: 0000000000000000 R09: ffffed1006e0746c
R10: ffff88803703a363 R11: 0000000000000000 R12: ffff888047193c80
R13: dffffc0000000000 R14: ffff88805329dec0 R15: ffff888047193d30
FS:  0000555588599500(0000) GS:ffff8880d5ba2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2be8270000 CR3: 0000000054357000 CR4: 0000000000352ef0

final repro crashed as (corrupted=false):
------------[ cut here ]------------
kernel BUG at fs/jffs2/nodelist.c:462!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5850 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
RIP: 0010:jffs2_del_ino_cache+0x24f/0x2c0 fs/jffs2/nodelist.c:462
Code: 4c 89 e2 49 8b 5e 18 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 75 71 49 89 1c 24 e9 42 ff ff ff e8 e2 89 84 fe 90 <0f> 0b e8 9a 5d f7 fe e9 5b fe ff ff e8 60 5d f7 fe e9 59 ff ff ff
RSP: 0018:ffffc90003857a90 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88803703a000 RCX: 0000000000000000
RDX: ffff888033dca580 RSI: ffffffff838677ee RDI: ffff88805329dee0
RBP: 0000000000000006 R08: 0000000000000000 R09: ffffed1006e0746c
R10: ffff88803703a363 R11: 0000000000000000 R12: ffff888047193c80
R13: dffffc0000000000 R14: ffff88805329dec0 R15: ffff888047193d30
FS:  0000555588599500(0000) GS:ffff8880d5ba2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2be8270000 CR3: 0000000054357000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 jffs2_do_clear_inode+0x3ca/0x470 fs/jffs2/readinode.c:1443
 evict+0x3c2/0xad0 fs/inode.c:822
 dispose_list+0x117/0x1e0 fs/inode.c:864
 evict_inodes+0x582/0x6f0 fs/inode.c:918
 generic_shutdown_super+0xc8/0x360 fs/super.c:755
 kill_mtd_super+0x1d/0x80 drivers/mtd/mtdsuper.c:174
 jffs2_kill_sb+0x7c/0xb0 fs/jffs2/super.c:350
 deactivate_locked_super+0xbd/0x140 fs/super.c:603
 deactivate_super fs/super.c:632 [inline]
 deactivate_super+0xea/0x110 fs/super.c:628
 cleanup_mnt+0x21f/0x450 fs/namespace.c:1317
 task_work_run+0x150/0x240 kernel/task_work.c:233
 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline]
 __exit_to_user_mode_loop kernel/entry/common.c:70 [inline]
 exit_to_user_mode_loop+0x1d8/0x700 kernel/entry/common.c:101
 __exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
 syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
 syscall_exit_to_user_mode include/linux/entry-common.h:336 [inline]
 do_syscall_64+0x661/0x790 arch/x86/entry/syscall_64.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2be839f317
Code: a2 c7 05 dc 43 25 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffca620e3b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f2be8434474 RCX: 00007f2be839f317
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffca620e470
RBP: 00007ffca620e470 R08: 00007ffca620f470 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffca620f500
R13: 00007f2be8434474 R14: 000000000000d851 R15: 00007ffca620f540
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:jffs2_del_ino_cache+0x24f/0x2c0 fs/jffs2/nodelist.c:462
Code: 4c 89 e2 49 8b 5e 18 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 75 71 49 89 1c 24 e9 42 ff ff ff e8 e2 89 84 fe 90 <0f> 0b e8 9a 5d f7 fe e9 5b fe ff ff e8 60 5d f7 fe e9 59 ff ff ff
RSP: 0018:ffffc90003857a90 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88803703a000 RCX: 0000000000000000
RDX: ffff888033dca580 RSI: ffffffff838677ee RDI: ffff88805329dee0
RBP: 0000000000000006 R08: 0000000000000000 R09: ffffed1006e0746c
R10: ffff88803703a363 R11: 0000000000000000 R12: ffff888047193c80
R13: dffffc0000000000 R14: ffff88805329dec0 R15: ffff888047193d30
FS:  0000555588599500(0000) GS:ffff8880d5ba2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2be8270000 CR3: 0000000054357000 CR4: 0000000000352ef0