Extracting prog: 41.479891966s
Minimizing prog: 12m59.77764775s
Simplifying prog options: 0s
Extracting C: 1m26.345586713s
Simplifying C: 11m43.709172505s


extracting reproducer from 30 programs
first checking the prog from the crash report
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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_mount_image$erofs-mount$fuse-openat-fadvise64
detailed listing:
executing program 0:
syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x4, 0x0, 0x0, 0x4)
syz_mount_image$erofs(&(0x7f0000000400), &(0x7f0000000140)='./file1\x00', 0x1000801, &(0x7f0000000840)=ANY=[], 0x2, 0x1f1, &(0x7f0000000180)="$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")
mount$fuse(0x0, &(0x7f00000020c0)='./file0\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='.\x00', 0x400, 0x0)
fadvise64(r0, 0x8000, 0x4101, 0x3)

program crashed: KASAN: use-after-free Read in z_erofs_transform_plain
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=53.271288436s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_mount_image$erofs-mount$fuse-openat
detailed listing:
executing program 0:
syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x4, 0x0, 0x0, 0x4)
syz_mount_image$erofs(&(0x7f0000000400), &(0x7f0000000140)='./file1\x00', 0x1000801, &(0x7f0000000840)=ANY=[], 0x2, 0x1f1, &(0x7f0000000180)="$eJzsmb/L00AYx7+XpHl/IIqLg4uDL6jgmyapyrt0qOAoiFXUwaHYWKppK22EtiC0uLj4BwiuLo4ODk4O/gWuOqggONjRTTi5yyW9xrS0UrTg84HefXO5e567p/QbSEEQxH/Ll88/Pj29eHDtLIBD2MOWGv9mxj0/Mjv/47OHOyhfev7qw4t37cOP3mTjMbGGL5/fBvC2YiICs1TGmdU7mt5T/XUYOKP0DTA4sfzJJUKOEIDhlppzT9OdJGAYOHc6Yf1uMwxc0Xii8UVT0vOLTU3GDHUA23J3nDPtfm8wvF8Lw6CbFQWe5Pnt1qpiUf3k/ioGykiqx7kB4OaTx2NxrWoDF0ZaPw8GPKVLYKgqfYAtOI4zLYl2/uPWNL65zPn/rXgpxdH9v5VUFFiwCWcXgmEjtrFuUVhLHJYdET/odOTYJPFAfc7XFXPdZtiYr0AaF3L28343DC//YWRRMTunUKmY+pNw9lOaP1mwUv8oRq0Hxd5guN9s1RpBI2j7fumCe851z/tFaURxu8D/tqU/7WrxC3Pm2sxGvxZFXa8PRF0vvfbjVnPc6uvOd7nGuNqIF5+MO6aeWemDMgNTH0P2Qp0282eO5p6JIAiCIAiCIAiCIAiCIAginxNgiP8J40y9EM3DvyLfUP4KAAD//79dYrY=")
mount$fuse(0x0, &(0x7f00000020c0)='./file0\x00', 0x0, 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000040)='.\x00', 0x400, 0x0)

program did not crash
testing program (duration=53.271288436s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_mount_image$erofs-mount$fuse-fadvise64
detailed listing:
executing program 0:
syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x4, 0x0, 0x0, 0x4)
syz_mount_image$erofs(&(0x7f0000000400), &(0x7f0000000140)='./file1\x00', 0x1000801, &(0x7f0000000840)=ANY=[], 0x2, 0x1f1, &(0x7f0000000180)="$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")
mount$fuse(0x0, &(0x7f00000020c0)='./file0\x00', 0x0, 0x0, 0x0)
fadvise64(0xffffffffffffffff, 0x8000, 0x4101, 0x3)

program did not crash
testing program (duration=53.271288436s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_memcpy_off$IO_URING_METADATA_GENERIC-syz_mount_image$erofs-openat-fadvise64
detailed listing:
executing program 0:
syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x4, 0x0, 0x0, 0x4)
syz_mount_image$erofs(&(0x7f0000000400), &(0x7f0000000140)='./file1\x00', 0x1000801, &(0x7f0000000840)=ANY=[], 0x2, 0x1f1, &(0x7f0000000180)="$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")
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='.\x00', 0x400, 0x0)
fadvise64(r0, 0x8000, 0x4101, 0x3)

program did not crash
testing program (duration=53.271288436s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_memcpy_off$IO_URING_METADATA_GENERIC-mount$fuse-openat-fadvise64
detailed listing:
executing program 0:
syz_memcpy_off$IO_URING_METADATA_GENERIC(0x0, 0x4, 0x0, 0x0, 0x4)
mount$fuse(0x0, &(0x7f00000020c0)='./file0\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='.\x00', 0x400, 0x0)
fadvise64(r0, 0x8000, 0x4101, 0x3)

program crashed: lost connection to test machine
suppressed program crash: lost connection to test machine
testing program (duration=53.271288436s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-mount$fuse-openat-fadvise64
detailed listing:
executing program 0:
syz_mount_image$erofs(&(0x7f0000000400), &(0x7f0000000140)='./file1\x00', 0x1000801, &(0x7f0000000840)=ANY=[], 0x2, 0x1f1, &(0x7f0000000180)="$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")
mount$fuse(0x0, &(0x7f00000020c0)='./file0\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='.\x00', 0x400, 0x0)
fadvise64(r0, 0x8000, 0x4101, 0x3)

program crashed: KASAN: use-after-free Read in z_erofs_transform_plain
testing program (duration=53.271288436s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-mount$fuse-openat-fadvise64
detailed listing:
executing program 0:
syz_mount_image$erofs(&(0x7f0000000400), &(0x7f0000000140)='./file1\x00', 0x1000801, &(0x7f0000000840)=ANY=[], 0x2, 0x1f1, &(0x7f0000000180)="$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")
mount$fuse(0x0, 0x0, 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000040)='.\x00', 0x400, 0x0)
fadvise64(r0, 0x8000, 0x4101, 0x3)

program did not crash
testing program (duration=53.271288436s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-mount$fuse-openat-fadvise64
detailed listing:
executing program 0:
syz_mount_image$erofs(&(0x7f0000000400), &(0x7f0000000140)='./file1\x00', 0x1000801, &(0x7f0000000840)=ANY=[], 0x2, 0x1f1, &(0x7f0000000180)="$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")
mount$fuse(0x0, &(0x7f00000020c0)='./file0\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x400, 0x0)
fadvise64(r0, 0x8000, 0x4101, 0x3)

program did not crash
extracting C reproducer
testing compiled C program (duration=53.271288436s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-mount$fuse-openat-fadvise64
program crashed: KASAN: use-after-free Read in z_erofs_transform_plain
simplifying C reproducer
testing compiled C program (duration=53.271288436s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-mount$fuse-openat-fadvise64
program crashed: KASAN: use-after-free Read in z_erofs_transform_plain
testing compiled C program (duration=53.271288436s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-mount$fuse-openat-fadvise64
program did not crash
testing compiled C program (duration=53.271288436s, {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:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-mount$fuse-openat-fadvise64
program crashed: KASAN: use-after-free Read in z_erofs_transform_plain
testing compiled C program (duration=53.271288436s, {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:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-mount$fuse-openat-fadvise64
program crashed: KASAN: use-after-free Read in z_erofs_transform_plain
testing compiled C program (duration=53.271288436s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-mount$fuse-openat-fadvise64
program crashed: KASAN: use-after-free Read in z_erofs_transform_plain
testing compiled C program (duration=53.271288436s, {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:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-mount$fuse-openat-fadvise64
program crashed: KASAN: use-after-free Read in z_erofs_transform_plain
testing compiled C program (duration=53.271288436s, {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:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-mount$fuse-openat-fadvise64
program crashed: KASAN: use-after-free Read in z_erofs_transform_plain
testing compiled C program (duration=53.271288436s, {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:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$erofs-mount$fuse-openat-fadvise64
program crashed: KASAN: use-after-free Read in z_erofs_transform_plain
reproducing took 26m51.312359674s
repro crashed as (corrupted=false):
loop0: rw=524288, sector=67108872, nr_sectors = 16 limit=16
syz-executor984: attempt to access beyond end of device
loop0: rw=524288, sector=720, nr_sectors = 8 limit=16
==================================================================
BUG: KASAN: use-after-free in z_erofs_transform_plain+0x380/0x460 fs/erofs/decompressor.c:350
Read of size 4095 at addr ffff0000d016d400 by task syz-executor984/4297

CPU: 1 PID: 4297 Comm: syz-executor984 Tainted: G        W          6.1.122-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:316 [inline]
 print_report+0x174/0x4c0 mm/kasan/report.c:427
 kasan_report+0xd4/0x130 mm/kasan/report.c:531
 kasan_check_range+0x264/0x2a4 mm/kasan/generic.c:189
 memcpy+0x48/0x90 mm/kasan/shadow.c:65
 z_erofs_transform_plain+0x380/0x460 fs/erofs/decompressor.c:350
 z_erofs_decompress+0x9c/0xd4 fs/erofs/decompressor.c:439
 z_erofs_decompress_pcluster fs/erofs/zdata.c:1175 [inline]
 z_erofs_decompress_queue+0x13a8/0x2360 fs/erofs/zdata.c:1258
 z_erofs_runqueue+0x166c/0x18b4 fs/erofs/zdata.c:1616
 z_erofs_readahead+0x988/0xe04 fs/erofs/zdata.c:1760
 read_pages+0x168/0x6a0 mm/readahead.c:161
 page_cache_ra_unbounded+0x46c/0x58c mm/readahead.c:270
 do_page_cache_ra mm/readahead.c:300 [inline]
 force_page_cache_ra+0x248/0x2b0 mm/readahead.c:331
 force_page_cache_readahead mm/internal.h:125 [inline]
 generic_fadvise+0x3f8/0x648 mm/fadvise.c:107
 vfs_fadvise mm/fadvise.c:185 [inline]
 ksys_fadvise64_64 mm/fadvise.c:199 [inline]
 __do_sys_fadvise64_64 mm/fadvise.c:207 [inline]
 __se_sys_fadvise64_64 mm/fadvise.c:205 [inline]
 __arm64_sys_fadvise64_64+0x12c/0x174 mm/fadvise.c:205
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585

The buggy address belongs to the physical page:
page:000000009a0a6637 refcount:2 mapcount:0 mapping:00000000b22db004 index:0x1 pfn:0x11016d
memcg:ffff0000c0940000
aops:managed_cache_aops ino:0
flags: 0x5ffd00000002014(uptodate|lru|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffd00000002014 fffffc000325f6c8 fffffc000340c2c8 ffff0000e48687c8
raw: 0000000000000001 ffff0000e482e000 00000002ffffffff ffff0000c0940000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000d016df00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff0000d016df80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff0000d016e000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                   ^
 ffff0000d016e080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff0000d016e100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================

final repro crashed as (corrupted=false):
loop0: rw=524288, sector=67108872, nr_sectors = 16 limit=16
syz-executor984: attempt to access beyond end of device
loop0: rw=524288, sector=720, nr_sectors = 8 limit=16
==================================================================
BUG: KASAN: use-after-free in z_erofs_transform_plain+0x380/0x460 fs/erofs/decompressor.c:350
Read of size 4095 at addr ffff0000d016d400 by task syz-executor984/4297

CPU: 1 PID: 4297 Comm: syz-executor984 Tainted: G        W          6.1.122-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call trace:
 dump_backtrace+0x1c8/0x1f4 arch/arm64/kernel/stacktrace.c:158
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:165
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:316 [inline]
 print_report+0x174/0x4c0 mm/kasan/report.c:427
 kasan_report+0xd4/0x130 mm/kasan/report.c:531
 kasan_check_range+0x264/0x2a4 mm/kasan/generic.c:189
 memcpy+0x48/0x90 mm/kasan/shadow.c:65
 z_erofs_transform_plain+0x380/0x460 fs/erofs/decompressor.c:350
 z_erofs_decompress+0x9c/0xd4 fs/erofs/decompressor.c:439
 z_erofs_decompress_pcluster fs/erofs/zdata.c:1175 [inline]
 z_erofs_decompress_queue+0x13a8/0x2360 fs/erofs/zdata.c:1258
 z_erofs_runqueue+0x166c/0x18b4 fs/erofs/zdata.c:1616
 z_erofs_readahead+0x988/0xe04 fs/erofs/zdata.c:1760
 read_pages+0x168/0x6a0 mm/readahead.c:161
 page_cache_ra_unbounded+0x46c/0x58c mm/readahead.c:270
 do_page_cache_ra mm/readahead.c:300 [inline]
 force_page_cache_ra+0x248/0x2b0 mm/readahead.c:331
 force_page_cache_readahead mm/internal.h:125 [inline]
 generic_fadvise+0x3f8/0x648 mm/fadvise.c:107
 vfs_fadvise mm/fadvise.c:185 [inline]
 ksys_fadvise64_64 mm/fadvise.c:199 [inline]
 __do_sys_fadvise64_64 mm/fadvise.c:207 [inline]
 __se_sys_fadvise64_64 mm/fadvise.c:205 [inline]
 __arm64_sys_fadvise64_64+0x12c/0x174 mm/fadvise.c:205
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140
 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204
 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637
 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655
 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585

The buggy address belongs to the physical page:
page:000000009a0a6637 refcount:2 mapcount:0 mapping:00000000b22db004 index:0x1 pfn:0x11016d
memcg:ffff0000c0940000
aops:managed_cache_aops ino:0
flags: 0x5ffd00000002014(uptodate|lru|private|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffd00000002014 fffffc000325f6c8 fffffc000340c2c8 ffff0000e48687c8
raw: 0000000000000001 ffff0000e482e000 00000002ffffffff ffff0000c0940000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000d016df00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff0000d016df80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff0000d016e000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
                   ^
 ffff0000d016e080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
 ffff0000d016e100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================