Extracting prog: 1m11.374742397s
Minimizing prog: 3m31.417616203s
Simplifying prog options: 0s
Extracting C: 30.343992712s
Simplifying C: 10m2.306443601s


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:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000002c0)='ext4\x00', &(0x7f00000001c0)='./file0\x00', 0x800700, &(0x7f0000000680)={[{@block_validity}, {@nouser_xattr}, {@nogrpid}, {@oldalloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x9e14}}, {@inode_readahead_blks={'inode_readahead_blks', 0x3d, 0x1000000}}, {@nomblk_io_submit}, {@discard}, {@jqfmt_vfsold}, {@barrier}, {@init_itable_val={'init_itable', 0x3d, 0x400}}], [{@seclabel}]}, 0x2, 0x460, &(0x7f00000008c0)="$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")
mount$incfs(&(0x7f0000000000)='./file0\x00', &(0x7f0000000140)='./file0\x00', &(0x7f0000000280), 0x404, 0x0)

program crashed: kernel BUG in may_delete
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000002c0)='ext4\x00', &(0x7f00000001c0)='./file0\x00', 0x800700, &(0x7f0000000680)={[{@block_validity}, {@nouser_xattr}, {@nogrpid}, {@oldalloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x9e14}}, {@inode_readahead_blks={'inode_readahead_blks', 0x3d, 0x1000000}}, {@nomblk_io_submit}, {@discard}, {@jqfmt_vfsold}, {@barrier}, {@init_itable_val={'init_itable', 0x3d, 0x400}}], [{@seclabel}]}, 0x2, 0x460, &(0x7f00000008c0)="$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")

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount$incfs
detailed listing:
executing program 0:
mount$incfs(&(0x7f0000000000)='./file0\x00', &(0x7f0000000140)='./file0\x00', &(0x7f0000000280), 0x404, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000002c0)='ext4\x00', &(0x7f00000001c0)='./file0\x00', 0x800700, &(0x7f0000000680)={[{@block_validity}, {@nouser_xattr}, {@nogrpid}, {@oldalloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x9e14}}, {@inode_readahead_blks={'inode_readahead_blks', 0x3d, 0x1000000}}, {@nomblk_io_submit}, {@discard}, {@jqfmt_vfsold}, {@barrier}, {@init_itable_val={'init_itable', 0x3d, 0x400}}], [{@seclabel}]}, 0x2, 0x460, &(0x7f00000008c0)="$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")
mount$incfs(0x0, &(0x7f0000000140)='./file0\x00', &(0x7f0000000280), 0x404, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000002c0)='ext4\x00', &(0x7f00000001c0)='./file0\x00', 0x800700, &(0x7f0000000680)={[{@block_validity}, {@nouser_xattr}, {@nogrpid}, {@oldalloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x9e14}}, {@inode_readahead_blks={'inode_readahead_blks', 0x3d, 0x1000000}}, {@nomblk_io_submit}, {@discard}, {@jqfmt_vfsold}, {@barrier}, {@init_itable_val={'init_itable', 0x3d, 0x400}}], [{@seclabel}]}, 0x2, 0x460, &(0x7f00000008c0)="$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")
mount$incfs(&(0x7f0000000000)='./file0\x00', 0x0, &(0x7f0000000280), 0x404, 0x0)

program did not crash
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000002c0)='ext4\x00', &(0x7f00000001c0)='./file0\x00', 0x800700, &(0x7f0000000680)={[{@block_validity}, {@nouser_xattr}, {@nogrpid}, {@oldalloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x9e14}}, {@inode_readahead_blks={'inode_readahead_blks', 0x3d, 0x1000000}}, {@nomblk_io_submit}, {@discard}, {@jqfmt_vfsold}, {@barrier}, {@init_itable_val={'init_itable', 0x3d, 0x400}}], [{@seclabel}]}, 0x2, 0x460, &(0x7f00000008c0)="$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")
mount$incfs(&(0x7f0000000000)='./file0\x00', &(0x7f0000000140)='./file0\x00', 0x0, 0x404, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: kernel BUG in may_delete
simplifying C reproducer
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: kernel BUG in may_delete
testing compiled C program (duration=30s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program did not crash
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: kernel BUG in may_delete
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program did not crash
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: kernel BUG in may_delete
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: kernel BUG in may_delete
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: kernel BUG in may_delete
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program did not crash
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: kernel BUG in may_delete
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: kernel BUG in may_delete
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: kernel BUG in may_delete
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: kernel BUG in may_delete
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
program crashed: kernel BUG in may_delete
testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000002c0)='ext4\x00', &(0x7f00000001c0)='./file0\x00', 0x800700, &(0x7f0000000680)={[{@block_validity}, {@nouser_xattr}, {@nogrpid}, {@oldalloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x9e14}}, {@inode_readahead_blks={'inode_readahead_blks', 0x3d, 0x1000000}}, {@nomblk_io_submit}, {@discard}, {@jqfmt_vfsold}, {@barrier}, {@init_itable_val={'init_itable', 0x3d, 0x400}}], [{@seclabel}]}, 0x2, 0x460, &(0x7f00000008c0)="$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")
mount$incfs(&(0x7f0000000000)='./file0\x00', &(0x7f0000000140)='./file0\x00', &(0x7f0000000280), 0x404, 0x0)

program crashed: kernel BUG in may_delete
validation run: crashed=true
testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000002c0)='ext4\x00', &(0x7f00000001c0)='./file0\x00', 0x800700, &(0x7f0000000680)={[{@block_validity}, {@nouser_xattr}, {@nogrpid}, {@oldalloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x9e14}}, {@inode_readahead_blks={'inode_readahead_blks', 0x3d, 0x1000000}}, {@nomblk_io_submit}, {@discard}, {@jqfmt_vfsold}, {@barrier}, {@init_itable_val={'init_itable', 0x3d, 0x400}}], [{@seclabel}]}, 0x2, 0x460, &(0x7f00000008c0)="$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")
mount$incfs(&(0x7f0000000000)='./file0\x00', &(0x7f0000000140)='./file0\x00', &(0x7f0000000280), 0x404, 0x0)

program crashed: kernel BUG in may_delete
validation run: crashed=true
testing program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-mount$incfs
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f00000002c0)='ext4\x00', &(0x7f00000001c0)='./file0\x00', 0x800700, &(0x7f0000000680)={[{@block_validity}, {@nouser_xattr}, {@nogrpid}, {@oldalloc}, {@max_dir_size_kb={'max_dir_size_kb', 0x3d, 0x9e14}}, {@inode_readahead_blks={'inode_readahead_blks', 0x3d, 0x1000000}}, {@nomblk_io_submit}, {@discard}, {@jqfmt_vfsold}, {@barrier}, {@init_itable_val={'init_itable', 0x3d, 0x400}}], [{@seclabel}]}, 0x2, 0x460, &(0x7f00000008c0)="$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")
mount$incfs(&(0x7f0000000000)='./file0\x00', &(0x7f0000000140)='./file0\x00', &(0x7f0000000280), 0x404, 0x0)

program crashed: kernel BUG in may_delete
validation run: crashed=true
reproducing took 17m42.711983095s
repro crashed as (corrupted=false):
EXT4-fs error (device loop2): htree_dirblock_to_tree:1092: inode #2: block 13: comm syz-executor: bad entry in directory: rec_len is smaller than minimal - offset=76, inode=0, rec_len=0, size=1024 fake=0
------------[ cut here ]------------
kernel BUG at fs/namei.c:2836!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 366 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:may_delete+0x7a5/0x7b0 fs/namei.c:2836
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c cb fd ff ff 48 89 df e8 dc 03 f5 ff e9 be fd ff ff e8 22 83 ba ff 0f 0b e8 1b 83 ba ff <0f> 0b 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8
RSP: 0018:ffffc90000d57cd0 EFLAGS: 00010293
RAX: ffffffff81aa3195 RBX: ffff88811043aaa0 RCX: ffff88810d478000
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc90000d57d48 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520001aaf7c R12: ffff8881210e3ca8
R13: 1ffff11022087554 R14: ffff888109339f10 R15: dffffc0000000000
FS:  000055555faef500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555fb12948 CR3: 000000010dedc000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vfs_rmdir+0x29/0x3c0 fs/namei.c:3883
 incfs_kill_sb+0xf7/0x200 fs/incfs/vfs.c:1973
 deactivate_locked_super+0xa0/0x100 fs/super.c:335
 deactivate_super+0xaf/0xe0 fs/super.c:366
 cleanup_mnt+0x44f/0x500 fs/namespace.c:1123
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1130
 task_work_run+0x127/0x190 kernel/task_work.c:189
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_user_mode_loop+0xcb/0xe0 kernel/entry/common.c:172
 exit_to_user_mode_prepare+0x76/0xa0 kernel/entry/common.c:199
 syscall_exit_to_user_mode+0x1d/0x40 kernel/entry/common.c:274
 do_syscall_64+0x3d/0x40 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fa0f2004397
Code: a2 c7 05 5c 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:00007ffd3967fa28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fa0f2004397
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd3967fae0
RBP: 00007ffd3967fae0 R08: 00007ffd39680ae0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd39680bd0
R13: 00007fa0f20994bb R14: 00000000000072b2 R15: 00007ffd39681ca0
Modules linked in:
---[ end trace 0a096302058ccd9c ]---
RIP: 0010:may_delete+0x7a5/0x7b0 fs/namei.c:2836
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c cb fd ff ff 48 89 df e8 dc 03 f5 ff e9 be fd ff ff e8 22 83 ba ff 0f 0b e8 1b 83 ba ff <0f> 0b 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8
RSP: 0018:ffffc90000d57cd0 EFLAGS: 00010293
RAX: ffffffff81aa3195 RBX: ffff88811043aaa0 RCX: ffff88810d478000
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc90000d57d48 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520001aaf7c R12: ffff8881210e3ca8
R13: 1ffff11022087554 R14: ffff888109339f10 R15: dffffc0000000000
FS:  000055555faef500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555fb12948 CR3: 000000010dedc000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

final repro crashed as (corrupted=false):
EXT4-fs error (device loop2): htree_dirblock_to_tree:1092: inode #2: block 13: comm syz-executor: bad entry in directory: rec_len is smaller than minimal - offset=76, inode=0, rec_len=0, size=1024 fake=0
------------[ cut here ]------------
kernel BUG at fs/namei.c:2836!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 366 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:may_delete+0x7a5/0x7b0 fs/namei.c:2836
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c cb fd ff ff 48 89 df e8 dc 03 f5 ff e9 be fd ff ff e8 22 83 ba ff 0f 0b e8 1b 83 ba ff <0f> 0b 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8
RSP: 0018:ffffc90000d57cd0 EFLAGS: 00010293
RAX: ffffffff81aa3195 RBX: ffff88811043aaa0 RCX: ffff88810d478000
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc90000d57d48 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520001aaf7c R12: ffff8881210e3ca8
R13: 1ffff11022087554 R14: ffff888109339f10 R15: dffffc0000000000
FS:  000055555faef500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555fb12948 CR3: 000000010dedc000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 vfs_rmdir+0x29/0x3c0 fs/namei.c:3883
 incfs_kill_sb+0xf7/0x200 fs/incfs/vfs.c:1973
 deactivate_locked_super+0xa0/0x100 fs/super.c:335
 deactivate_super+0xaf/0xe0 fs/super.c:366
 cleanup_mnt+0x44f/0x500 fs/namespace.c:1123
 __cleanup_mnt+0x19/0x20 fs/namespace.c:1130
 task_work_run+0x127/0x190 kernel/task_work.c:189
 tracehook_notify_resume include/linux/tracehook.h:188 [inline]
 exit_to_user_mode_loop+0xcb/0xe0 kernel/entry/common.c:172
 exit_to_user_mode_prepare+0x76/0xa0 kernel/entry/common.c:199
 syscall_exit_to_user_mode+0x1d/0x40 kernel/entry/common.c:274
 do_syscall_64+0x3d/0x40 arch/x86/entry/common.c:56
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fa0f2004397
Code: a2 c7 05 5c 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:00007ffd3967fa28 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007fa0f2004397
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd3967fae0
RBP: 00007ffd3967fae0 R08: 00007ffd39680ae0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd39680bd0
R13: 00007fa0f20994bb R14: 00000000000072b2 R15: 00007ffd39681ca0
Modules linked in:
---[ end trace 0a096302058ccd9c ]---
RIP: 0010:may_delete+0x7a5/0x7b0 fs/namei.c:2836
Code: ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c cb fd ff ff 48 89 df e8 dc 03 f5 ff e9 be fd ff ff e8 22 83 ba ff 0f 0b e8 1b 83 ba ff <0f> 0b 66 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 56 53 48 89 fb e8
RSP: 0018:ffffc90000d57cd0 EFLAGS: 00010293
RAX: ffffffff81aa3195 RBX: ffff88811043aaa0 RCX: ffff88810d478000
RDX: 0000000000000000 RSI: 0000000000200000 RDI: 0000000000000000
RBP: ffffc90000d57d48 R08: 0000000000000003 R09: 0000000000000004
R10: dffffc0000000000 R11: fffff520001aaf7c R12: ffff8881210e3ca8
R13: 1ffff11022087554 R14: ffff888109339f10 R15: dffffc0000000000
FS:  000055555faef500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555fb12948 CR3: 000000010dedc000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400