Extracting prog: 1m0.981624558s
Minimizing prog: 5m23.838894123s
Simplifying prog options: 0s
Extracting C: 27.956879845s
Simplifying C: 3m30.291189932s


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$ext4-chdir-openat$dir-lseek-getdents
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f00000001c0)='./file2\x00', 0x404, &(0x7f0000000000)={[{@block_validity}]}, 0x1, 0x44e, &(0x7f0000000cc0)="$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")
chdir(&(0x7f0000000240)='./file0\x00')
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000500)='.\x00', 0x0, 0x0)
lseek(r0, 0xfffffffffffffffc, 0x2)
getdents(r0, 0x0, 0x54)

program crashed: KASAN: slab-out-of-bounds Read in __ext4_check_dir_entry
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=33.954154801s, {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$ext4-chdir-openat$dir-lseek
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f00000001c0)='./file2\x00', 0x404, &(0x7f0000000000)={[{@block_validity}]}, 0x1, 0x44e, &(0x7f0000000cc0)="$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")
chdir(&(0x7f0000000240)='./file0\x00')
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000500)='.\x00', 0x0, 0x0)
lseek(r0, 0xfffffffffffffffc, 0x2)

program did not crash
testing program (duration=33.954154801s, {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$ext4-chdir-openat$dir-getdents
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f00000001c0)='./file2\x00', 0x404, &(0x7f0000000000)={[{@block_validity}]}, 0x1, 0x44e, &(0x7f0000000cc0)="$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")
chdir(&(0x7f0000000240)='./file0\x00')
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000500)='.\x00', 0x0, 0x0)
getdents(r0, 0x0, 0x54)

program crashed: lost connection to test machine
suppressed program crash: lost connection to test machine
testing program (duration=33.954154801s, {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$ext4-chdir-lseek-getdents
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f00000001c0)='./file2\x00', 0x404, &(0x7f0000000000)={[{@block_validity}]}, 0x1, 0x44e, &(0x7f0000000cc0)="$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")
chdir(&(0x7f0000000240)='./file0\x00')
lseek(0xffffffffffffffff, 0xfffffffffffffffc, 0x2)
getdents(0xffffffffffffffff, 0x0, 0x54)

program did not crash
testing program (duration=33.954154801s, {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$ext4-openat$dir-lseek-getdents
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f00000001c0)='./file2\x00', 0x404, &(0x7f0000000000)={[{@block_validity}]}, 0x1, 0x44e, &(0x7f0000000cc0)="$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")
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000500)='.\x00', 0x0, 0x0)
lseek(r0, 0xfffffffffffffffc, 0x2)
getdents(r0, 0x0, 0x54)

program did not crash
testing program (duration=33.954154801s, {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}}): chdir-openat$dir-lseek-getdents
detailed listing:
executing program 0:
chdir(&(0x7f0000000240)='./file0\x00')
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000500)='.\x00', 0x0, 0x0)
lseek(r0, 0xfffffffffffffffc, 0x2)
getdents(r0, 0x0, 0x54)

program did not crash
testing program (duration=33.954154801s, {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$ext4-chdir-openat$dir-lseek-getdents
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f00000001c0)='./file2\x00', 0x404, &(0x7f0000000000)={[{@block_validity}]}, 0x1, 0x44e, &(0x7f0000000cc0)="$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")
chdir(0x0)
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000500)='.\x00', 0x0, 0x0)
lseek(r0, 0xfffffffffffffffc, 0x2)
getdents(r0, 0x0, 0x54)

program did not crash
testing program (duration=33.954154801s, {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$ext4-chdir-openat$dir-lseek-getdents
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f00000001c0)='./file2\x00', 0x404, &(0x7f0000000000)={[{@block_validity}]}, 0x1, 0x44e, &(0x7f0000000cc0)="$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")
chdir(&(0x7f0000000240)='./file0\x00')
r0 = openat$dir(0xffffffffffffff9c, 0x0, 0x0, 0x0)
lseek(r0, 0xfffffffffffffffc, 0x2)
getdents(r0, 0x0, 0x54)

program did not crash
extracting C reproducer
testing compiled C program (duration=33.954154801s, {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$ext4-chdir-openat$dir-lseek-getdents
program crashed: KASAN: slab-out-of-bounds Read in __ext4_check_dir_entry
simplifying C reproducer
testing compiled C program (duration=33.954154801s, {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$ext4-chdir-openat$dir-lseek-getdents
program crashed: KASAN: slab-out-of-bounds Read in __ext4_check_dir_entry
testing compiled C program (duration=33.954154801s, {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$ext4-chdir-openat$dir-lseek-getdents
program crashed: KASAN: slab-out-of-bounds Read in __ext4_check_dir_entry
testing compiled C program (duration=33.954154801s, {Threaded:false Repeat:false 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$ext4-chdir-openat$dir-lseek-getdents
program crashed: KASAN: slab-out-of-bounds Read in __ext4_check_dir_entry
testing compiled C program (duration=33.954154801s, {Threaded:false Repeat:false 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:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-chdir-openat$dir-lseek-getdents
program crashed: KASAN: slab-out-of-bounds Read in __ext4_check_dir_entry
testing compiled C program (duration=33.954154801s, {Threaded:false Repeat:false 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:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-chdir-openat$dir-lseek-getdents
program crashed: KASAN: slab-out-of-bounds Read in __ext4_check_dir_entry
testing compiled C program (duration=33.954154801s, {Threaded:false Repeat:false 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:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-chdir-openat$dir-lseek-getdents
program crashed: KASAN: slab-out-of-bounds Read in __ext4_check_dir_entry
testing program (duration=33.954154801s, {Threaded:false Repeat:false 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:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-chdir-openat$dir-lseek-getdents
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f00000001c0)='./file2\x00', 0x404, &(0x7f0000000000)={[{@block_validity}]}, 0x1, 0x44e, &(0x7f0000000cc0)="$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")
chdir(&(0x7f0000000240)='./file0\x00')
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000500)='.\x00', 0x0, 0x0)
lseek(r0, 0xfffffffffffffffc, 0x2)
getdents(r0, 0x0, 0x54)

program crashed: KASAN: slab-out-of-bounds Read in __ext4_check_dir_entry
validation run: crashed=true
testing program (duration=33.954154801s, {Threaded:false Repeat:false 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:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-chdir-openat$dir-lseek-getdents
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f00000001c0)='./file2\x00', 0x404, &(0x7f0000000000)={[{@block_validity}]}, 0x1, 0x44e, &(0x7f0000000cc0)="$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")
chdir(&(0x7f0000000240)='./file0\x00')
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000500)='.\x00', 0x0, 0x0)
lseek(r0, 0xfffffffffffffffc, 0x2)
getdents(r0, 0x0, 0x54)

program crashed: KASAN: slab-out-of-bounds Read in __ext4_check_dir_entry
validation run: crashed=true
testing program (duration=33.954154801s, {Threaded:false Repeat:false 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:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$ext4-chdir-openat$dir-lseek-getdents
detailed listing:
executing program 0:
syz_mount_image$ext4(&(0x7f0000000040)='ext4\x00', &(0x7f00000001c0)='./file2\x00', 0x404, &(0x7f0000000000)={[{@block_validity}]}, 0x1, 0x44e, &(0x7f0000000cc0)="$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")
chdir(&(0x7f0000000240)='./file0\x00')
r0 = openat$dir(0xffffffffffffff9c, &(0x7f0000000500)='.\x00', 0x0, 0x0)
lseek(r0, 0xfffffffffffffffc, 0x2)
getdents(r0, 0x0, 0x54)

program crashed: KASAN: slab-out-of-bounds Read in __ext4_check_dir_entry
validation run: crashed=true
reproducing took 12m29.638042069s
repro crashed as (corrupted=false):
EXT4-fs (loop2): encrypted files will use data=ordered instead of data journaling mode
EXT4-fs (loop2): revision level too high, forcing read-only mode
EXT4-fs (loop2): orphan cleanup on readonly fs
EXT4-fs (loop2): 1 truncate cleaned up
EXT4-fs (loop2): mounted filesystem without journal. Opts: block_validity,,errors=continue. Quota mode: none.
==================================================================
BUG: KASAN: slab-out-of-bounds in __ext4_check_dir_entry+0x7e3/0x990 fs/ext4/dir.c:85
Read of size 2 at addr ffff88811dbf8dbc by task syz.2.17/374

CPU: 0 PID: 374 Comm: syz.2.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:427 [inline]
 kasan_report+0x10f/0x150 mm/kasan/report.c:444
 __asan_report_load2_noabort+0x14/0x20 mm/kasan/report_generic.c:307
 __ext4_check_dir_entry+0x7e3/0x990 fs/ext4/dir.c:85
 ext4_read_inline_dir+0x851/0xd00 fs/ext4/inline.c:1639
 ext4_readdir+0x3af/0x3aa0 fs/ext4/dir.c:161
 iterate_dir+0x25c/0x600 fs/readdir.c:-1
 __do_sys_getdents fs/readdir.c:286 [inline]
 __se_sys_getdents+0xf2/0x250 fs/readdir.c:271
 __x64_sys_getdents+0x7b/0x90 fs/readdir.c:271
 x64_sys_call+0xb4/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:79
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f58e90480d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffca1eab68 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
RAX: ffffffffffffffda RBX: 00007f58e92cffa0 RCX: 00007f58e90480d9
RDX: 0000000000000054 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f58e90df024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f58e92cffac R14: 00007f58e92cffa0 R15: 00007f58e92cffa0
 </TASK>

Allocated by task 374:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:433 [inline]
 ____kasan_kmalloc mm/kasan/common.c:512 [inline]
 __kasan_kmalloc+0xd4/0x100 mm/kasan/common.c:521
 kasan_kmalloc include/linux/kasan.h:227 [inline]
 __kmalloc+0x13d/0x2c0 mm/slub.c:4436
 kmalloc include/linux/slab.h:624 [inline]
 ext4_read_inline_dir+0x24d/0xd00 fs/ext4/inline.c:1552
 ext4_readdir+0x3af/0x3aa0 fs/ext4/dir.c:161
 iterate_dir+0x25c/0x600 fs/readdir.c:-1
 __do_sys_getdents fs/readdir.c:286 [inline]
 __se_sys_getdents+0xf2/0x250 fs/readdir.c:271
 __x64_sys_getdents+0x7b/0x90 fs/readdir.c:271
 x64_sys_call+0xb4/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:79
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

The buggy address belongs to the object at ffff88811dbf8d80
 which belongs to the cache kmalloc-64 of size 64
The buggy address is located 60 bytes inside of
 64-byte region [ffff88811dbf8d80, ffff88811dbf8dc0)
The buggy address belongs to the page:
page:ffffea000476fe00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11dbf8
flags: 0x4000000000000200(slab|zone=1)
raw: 4000000000000200 0000000000000000 dead000000000122 ffff888100042780
raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112cc0(GFP_USER|__GFP_NOWARN|__GFP_NORETRY), pid 8, ts 29860881800, free_ts 29118117344
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x192/0x1b0 mm/page_alloc.c:2607
 prep_new_page+0x1c/0x110 mm/page_alloc.c:2613
 get_page_from_freelist+0x2c3a/0x2cd0 mm/page_alloc.c:4487
 __alloc_pages+0x1a2/0x460 mm/page_alloc.c:5824
 alloc_slab_page mm/slub.c:-1 [inline]
 allocate_slab mm/slub.c:1937 [inline]
 new_slab+0xa0/0x4d0 mm/slub.c:2000
 ___slab_alloc+0x3ac/0x840 mm/slub.c:3033
 __slab_alloc+0x49/0x90 mm/slub.c:3120
 slab_alloc_node mm/slub.c:3211 [inline]
 slab_alloc mm/slub.c:3255 [inline]
 __kmalloc+0x16a/0x2c0 mm/slub.c:4432
 __kmalloc_node include/linux/slab.h:487 [inline]
 kmalloc_node include/linux/slab.h:642 [inline]
 kvmalloc_node+0x211/0x320 mm/util.c:621
 kvmalloc include/linux/mm.h:862 [inline]
 kvzalloc include/linux/mm.h:870 [inline]
 allocate_hook_entries_size net/netfilter/core.c:67 [inline]
 __nf_hook_entries_try_shrink+0x345/0x740 net/netfilter/core.c:254
 __nf_unregister_net_hook+0x3ae/0x560 net/netfilter/core.c:484
 nf_unregister_net_hook net/netfilter/core.c:-1 [inline]
 nf_unregister_net_hooks+0xe2/0x150 net/netfilter/core.c:577
 ipt_unregister_table_pre_exit+0x7c/0xb0 net/ipv4/netfilter/ip_tables.c:1795
 iptable_filter_net_pre_exit+0x1c/0x20 net/ipv4/netfilter/iptable_filter.c:71
 ops_pre_exit_list net/core/net_namespace.c:162 [inline]
 cleanup_net+0x4b2/0xae0 net/core/net_namespace.c:587
 process_one_work+0x6c8/0xbb0 kernel/workqueue.c:2328
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1474 [inline]
 free_pcp_prepare mm/page_alloc.c:1546 [inline]
 free_unref_page_prepare+0x5fa/0x600 mm/page_alloc.c:3536
 free_unref_page_list+0x138/0x9e0 mm/page_alloc.c:3673
 release_pages+0x1264/0x12c0 mm/swap.c:1015
 free_pages_and_swap_cache+0x86/0xa0 mm/swap_state.c:320
 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:240 [inline]
 tlb_flush_mmu mm/mmu_gather.c:247 [inline]
 tlb_finish_mmu+0x17e/0x310 mm/mmu_gather.c:338
 exit_mmap+0x43b/0x8b0 mm/mmap.c:3248
 __mmput+0x92/0x300 kernel/fork.c:1185
 mmput+0x50/0x150 kernel/fork.c:1208
 exit_mm kernel/exit.c:555 [inline]
 do_exit+0xacc/0x29a0 kernel/exit.c:877
 do_group_exit+0x149/0x310 kernel/exit.c:1004
 get_signal+0x64f/0x1430 kernel/signal.c:2908
 arch_do_signal_or_restart+0xe2/0x1100 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0xa7/0xe0 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86

Memory state around the buggy address:
 ffff88811dbf8c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88811dbf8d00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
>ffff88811dbf8d80: 00 00 00 00 00 00 00 04 fc fc fc fc fc fc fc fc
                                        ^
 ffff88811dbf8e00: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc
 ffff88811dbf8e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
EXT4-fs error (device loop2): ext4_read_inline_dir:1640: inode #12: block 7: comm syz.2.17: path /0/file2/file0: bad entry in directory: rec_len is smaller than minimal - offset=76, inode=0, rec_len=0, size=80 fake=0

final repro crashed as (corrupted=false):
EXT4-fs (loop2): encrypted files will use data=ordered instead of data journaling mode
EXT4-fs (loop2): revision level too high, forcing read-only mode
EXT4-fs (loop2): orphan cleanup on readonly fs
EXT4-fs (loop2): 1 truncate cleaned up
EXT4-fs (loop2): mounted filesystem without journal. Opts: block_validity,,errors=continue. Quota mode: none.
==================================================================
BUG: KASAN: slab-out-of-bounds in __ext4_check_dir_entry+0x7e3/0x990 fs/ext4/dir.c:85
Read of size 2 at addr ffff88811dbf8dbc by task syz.2.17/374

CPU: 0 PID: 374 Comm: syz.2.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
 <TASK>
 __dump_stack+0x21/0x30 lib/dump_stack.c:88
 dump_stack_lvl+0x110/0x170 lib/dump_stack.c:106
 print_address_description+0x7f/0x2c0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:427 [inline]
 kasan_report+0x10f/0x150 mm/kasan/report.c:444
 __asan_report_load2_noabort+0x14/0x20 mm/kasan/report_generic.c:307
 __ext4_check_dir_entry+0x7e3/0x990 fs/ext4/dir.c:85
 ext4_read_inline_dir+0x851/0xd00 fs/ext4/inline.c:1639
 ext4_readdir+0x3af/0x3aa0 fs/ext4/dir.c:161
 iterate_dir+0x25c/0x600 fs/readdir.c:-1
 __do_sys_getdents fs/readdir.c:286 [inline]
 __se_sys_getdents+0xf2/0x250 fs/readdir.c:271
 __x64_sys_getdents+0x7b/0x90 fs/readdir.c:271
 x64_sys_call+0xb4/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:79
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f58e90480d9
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 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 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fffca1eab68 EFLAGS: 00000246 ORIG_RAX: 000000000000004e
RAX: ffffffffffffffda RBX: 00007f58e92cffa0 RCX: 00007f58e90480d9
RDX: 0000000000000054 RSI: 0000000000000000 RDI: 0000000000000004
RBP: 00007f58e90df024 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f58e92cffac R14: 00007f58e92cffa0 R15: 00007f58e92cffa0
 </TASK>

Allocated by task 374:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:45 [inline]
 set_alloc_info mm/kasan/common.c:433 [inline]
 ____kasan_kmalloc mm/kasan/common.c:512 [inline]
 __kasan_kmalloc+0xd4/0x100 mm/kasan/common.c:521
 kasan_kmalloc include/linux/kasan.h:227 [inline]
 __kmalloc+0x13d/0x2c0 mm/slub.c:4436
 kmalloc include/linux/slab.h:624 [inline]
 ext4_read_inline_dir+0x24d/0xd00 fs/ext4/inline.c:1552
 ext4_readdir+0x3af/0x3aa0 fs/ext4/dir.c:161
 iterate_dir+0x25c/0x600 fs/readdir.c:-1
 __do_sys_getdents fs/readdir.c:286 [inline]
 __se_sys_getdents+0xf2/0x250 fs/readdir.c:271
 __x64_sys_getdents+0x7b/0x90 fs/readdir.c:271
 x64_sys_call+0xb4/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:79
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0

The buggy address belongs to the object at ffff88811dbf8d80
 which belongs to the cache kmalloc-64 of size 64
The buggy address is located 60 bytes inside of
 64-byte region [ffff88811dbf8d80, ffff88811dbf8dc0)
The buggy address belongs to the page:
page:ffffea000476fe00 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11dbf8
flags: 0x4000000000000200(slab|zone=1)
raw: 4000000000000200 0000000000000000 dead000000000122 ffff888100042780
raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 0, migratetype Unmovable, gfp_mask 0x112cc0(GFP_USER|__GFP_NOWARN|__GFP_NORETRY), pid 8, ts 29860881800, free_ts 29118117344
 set_page_owner include/linux/page_owner.h:33 [inline]
 post_alloc_hook+0x192/0x1b0 mm/page_alloc.c:2607
 prep_new_page+0x1c/0x110 mm/page_alloc.c:2613
 get_page_from_freelist+0x2c3a/0x2cd0 mm/page_alloc.c:4487
 __alloc_pages+0x1a2/0x460 mm/page_alloc.c:5824
 alloc_slab_page mm/slub.c:-1 [inline]
 allocate_slab mm/slub.c:1937 [inline]
 new_slab+0xa0/0x4d0 mm/slub.c:2000
 ___slab_alloc+0x3ac/0x840 mm/slub.c:3033
 __slab_alloc+0x49/0x90 mm/slub.c:3120
 slab_alloc_node mm/slub.c:3211 [inline]
 slab_alloc mm/slub.c:3255 [inline]
 __kmalloc+0x16a/0x2c0 mm/slub.c:4432
 __kmalloc_node include/linux/slab.h:487 [inline]
 kmalloc_node include/linux/slab.h:642 [inline]
 kvmalloc_node+0x211/0x320 mm/util.c:621
 kvmalloc include/linux/mm.h:862 [inline]
 kvzalloc include/linux/mm.h:870 [inline]
 allocate_hook_entries_size net/netfilter/core.c:67 [inline]
 __nf_hook_entries_try_shrink+0x345/0x740 net/netfilter/core.c:254
 __nf_unregister_net_hook+0x3ae/0x560 net/netfilter/core.c:484
 nf_unregister_net_hook net/netfilter/core.c:-1 [inline]
 nf_unregister_net_hooks+0xe2/0x150 net/netfilter/core.c:577
 ipt_unregister_table_pre_exit+0x7c/0xb0 net/ipv4/netfilter/ip_tables.c:1795
 iptable_filter_net_pre_exit+0x1c/0x20 net/ipv4/netfilter/iptable_filter.c:71
 ops_pre_exit_list net/core/net_namespace.c:162 [inline]
 cleanup_net+0x4b2/0xae0 net/core/net_namespace.c:587
 process_one_work+0x6c8/0xbb0 kernel/workqueue.c:2328
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:26 [inline]
 free_pages_prepare mm/page_alloc.c:1474 [inline]
 free_pcp_prepare mm/page_alloc.c:1546 [inline]
 free_unref_page_prepare+0x5fa/0x600 mm/page_alloc.c:3536
 free_unref_page_list+0x138/0x9e0 mm/page_alloc.c:3673
 release_pages+0x1264/0x12c0 mm/swap.c:1015
 free_pages_and_swap_cache+0x86/0xa0 mm/swap_state.c:320
 tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:240 [inline]
 tlb_flush_mmu mm/mmu_gather.c:247 [inline]
 tlb_finish_mmu+0x17e/0x310 mm/mmu_gather.c:338
 exit_mmap+0x43b/0x8b0 mm/mmap.c:3248
 __mmput+0x92/0x300 kernel/fork.c:1185
 mmput+0x50/0x150 kernel/fork.c:1208
 exit_mm kernel/exit.c:555 [inline]
 do_exit+0xacc/0x29a0 kernel/exit.c:877
 do_group_exit+0x149/0x310 kernel/exit.c:1004
 get_signal+0x64f/0x1430 kernel/signal.c:2908
 arch_do_signal_or_restart+0xe2/0x1100 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0xa7/0xe0 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0x87/0xd0 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x1a/0x30 kernel/entry/common.c:307
 do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86

Memory state around the buggy address:
 ffff88811dbf8c80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff88811dbf8d00: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
>ffff88811dbf8d80: 00 00 00 00 00 00 00 04 fc fc fc fc fc fc fc fc
                                        ^
 ffff88811dbf8e00: 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc fc
 ffff88811dbf8e80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
EXT4-fs error (device loop2): ext4_read_inline_dir:1640: inode #12: block 7: comm syz.2.17: path /0/file2/file0: bad entry in directory: rec_len is smaller than minimal - offset=76, inode=0, rec_len=0, size=80 fake=0