Extracting prog: 3m9.422664955s
Minimizing prog: 6m28.850300309s
Simplifying prog options: 0s
Extracting C: 35.024442174s
Simplifying C: 8m48.924563317s


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: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$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
detailed listing:
executing program 0:
syz_mount_image$hfsplus(&(0x7f0000000600), &(0x7f0000000180)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x201409c, &(0x7f0000000280)=ANY=[], 0x1, 0x644, &(0x7f0000000cc0)="$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")
r0 = syz_open_dev$loop(&(0x7f00000001c0), 0x0, 0x0)
ioctl$LOOP_SET_BLOCK_SIZE(r0, 0x4c09, 0x800)

program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write
single: successfully extracted reproducer
found reproducer with 3 syscalls
minimizing guilty program
testing program (duration=1m9.783090897s, {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$hfsplus-syz_open_dev$loop
detailed listing:
executing program 0:
syz_mount_image$hfsplus(&(0x7f0000000600), &(0x7f0000000180)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x201409c, &(0x7f0000000280)=ANY=[], 0x1, 0x644, &(0x7f0000000cc0)="$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")
syz_open_dev$loop(&(0x7f00000001c0), 0x0, 0x0)

program did not crash
testing program (duration=1m9.783090897s, {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$hfsplus-ioctl$LOOP_SET_BLOCK_SIZE
detailed listing:
executing program 0:
syz_mount_image$hfsplus(&(0x7f0000000600), &(0x7f0000000180)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x201409c, &(0x7f0000000280)=ANY=[], 0x1, 0x644, &(0x7f0000000cc0)="$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")
ioctl$LOOP_SET_BLOCK_SIZE(0xffffffffffffffff, 0x4c09, 0x800)

program did not crash
testing program (duration=1m9.783090897s, {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_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
detailed listing:
executing program 0:
r0 = syz_open_dev$loop(&(0x7f00000001c0), 0x0, 0x0)
ioctl$LOOP_SET_BLOCK_SIZE(r0, 0x4c09, 0x800)

program did not crash
testing program (duration=1m9.783090897s, {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$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
detailed listing:
executing program 0:
syz_mount_image$hfsplus(&(0x7f0000000600), &(0x7f0000000180)='./file0aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa\x00', 0x201409c, &(0x7f0000000280)=ANY=[], 0x1, 0x644, &(0x7f0000000cc0)="$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")
r0 = syz_open_dev$loop(0x0, 0x0, 0x0)
ioctl$LOOP_SET_BLOCK_SIZE(r0, 0x4c09, 0x800)

program did not crash
extracting C reproducer
testing compiled C program (duration=1m9.783090897s, {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$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write
simplifying C reproducer
testing compiled C program (duration=1m9.783090897s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write
testing compiled C program (duration=1m9.783090897s, {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$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write
testing compiled C program (duration=1m9.783090897s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write
testing compiled C program (duration=1m9.783090897s, {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$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write
testing compiled C program (duration=1m9.783090897s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
program did not crash
testing compiled C program (duration=1m9.783090897s, {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:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write
testing compiled C program (duration=1m9.783090897s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfsplus-syz_open_dev$loop-ioctl$LOOP_SET_BLOCK_SIZE
program crashed: KASAN: slab-out-of-bounds Read in generic_perform_write
reproducing took 19m2.222031485s
repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-out-of-bounds in copy_page_from_iter_atomic+0x834/0xffc lib/iov_iter.c:978
Read of size 1024 at addr ffff0000d9ecfc00 by task kworker/u4:1/136

CPU: 1 PID: 136 Comm: kworker/u4:1 Not tainted 5.15.173-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: loop0 loop_rootcg_workfn
Call trace:
 dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 print_address_description+0x7c/0x3f0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0x174/0x1e4 mm/kasan/report.c:451
 kasan_check_range+0x274/0x2b4 mm/kasan/generic.c:189
 memcpy+0x90/0xe8 mm/kasan/shadow.c:65
 copy_page_from_iter_atomic+0x834/0xffc lib/iov_iter.c:978
 generic_perform_write+0x2d0/0x520 mm/filemap.c:3793
 __generic_file_write_iter+0x230/0x454 mm/filemap.c:3912
 generic_file_write_iter+0xb4/0x1b8 mm/filemap.c:3944
 do_iter_readv_writev+0x420/0x5f8
 do_iter_write+0x1b8/0x66c fs/read_write.c:855
 vfs_iter_write+0x88/0xac fs/read_write.c:896
 lo_write_bvec+0x394/0xb4c drivers/block/loop.c:316
 lo_write_simple drivers/block/loop.c:338 [inline]
 do_req_filebacked drivers/block/loop.c:656 [inline]
 loop_handle_cmd drivers/block/loop.c:2234 [inline]
 loop_process_work+0x1f24/0x2798 drivers/block/loop.c:2274
 loop_rootcg_workfn+0x28/0x38 drivers/block/loop.c:2305
 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310
 worker_thread+0x910/0x1034 kernel/workqueue.c:2457
 kthread+0x37c/0x45c kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870

Allocated by task 4018:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 ____kasan_kmalloc+0xbc/0xfc mm/kasan/common.c:513
 __kasan_kmalloc+0x10/0x1c mm/kasan/common.c:522
 kasan_kmalloc include/linux/kasan.h:264 [inline]
 __kmalloc+0x29c/0x4c8 mm/slub.c:4407
 kmalloc include/linux/slab.h:596 [inline]
 hfsplus_read_wrapper+0x3b8/0xfc8 fs/hfsplus/wrapper.c:180
 hfsplus_fill_super+0x2f0/0x167c fs/hfsplus/super.c:413
 mount_bdev+0x274/0x370 fs/super.c:1400
 hfsplus_mount+0x44/0x58 fs/hfsplus/super.c:641
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611
 vfs_get_tree+0x90/0x274 fs/super.c:1530
 do_new_mount+0x278/0x8fc fs/namespace.c:3012
 path_mount+0x594/0x101c fs/namespace.c:3342
 do_mount fs/namespace.c:3355 [inline]
 __do_sys_mount fs/namespace.c:3563 [inline]
 __se_sys_mount fs/namespace.c:3540 [inline]
 __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3540
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

The buggy address belongs to the object at ffff0000d9ecfc00
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 0 bytes inside of
 512-byte region [ffff0000d9ecfc00, ffff0000d9ecfe00)
The buggy address belongs to the page:
page:00000000b1b74434 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x119ecc
head:00000000b1b74434 order:2 compound_mapcount:0 compound_pincount:0
flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000010200 fffffc0003467600 0000000500000005 ffff0000c0002600
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000d9ecfd00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff0000d9ecfd80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff0000d9ecfe00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                   ^
 ffff0000d9ecfe80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff0000d9ecff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================

final repro crashed as (corrupted=false):
==================================================================
BUG: KASAN: slab-out-of-bounds in copy_page_from_iter_atomic+0x834/0xffc lib/iov_iter.c:978
Read of size 1024 at addr ffff0000d9ecfc00 by task kworker/u4:1/136

CPU: 1 PID: 136 Comm: kworker/u4:1 Not tainted 5.15.173-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: loop0 loop_rootcg_workfn
Call trace:
 dump_backtrace+0x0/0x530 arch/arm64/kernel/stacktrace.c:152
 show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:216
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x108/0x170 lib/dump_stack.c:106
 print_address_description+0x7c/0x3f0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0x174/0x1e4 mm/kasan/report.c:451
 kasan_check_range+0x274/0x2b4 mm/kasan/generic.c:189
 memcpy+0x90/0xe8 mm/kasan/shadow.c:65
 copy_page_from_iter_atomic+0x834/0xffc lib/iov_iter.c:978
 generic_perform_write+0x2d0/0x520 mm/filemap.c:3793
 __generic_file_write_iter+0x230/0x454 mm/filemap.c:3912
 generic_file_write_iter+0xb4/0x1b8 mm/filemap.c:3944
 do_iter_readv_writev+0x420/0x5f8
 do_iter_write+0x1b8/0x66c fs/read_write.c:855
 vfs_iter_write+0x88/0xac fs/read_write.c:896
 lo_write_bvec+0x394/0xb4c drivers/block/loop.c:316
 lo_write_simple drivers/block/loop.c:338 [inline]
 do_req_filebacked drivers/block/loop.c:656 [inline]
 loop_handle_cmd drivers/block/loop.c:2234 [inline]
 loop_process_work+0x1f24/0x2798 drivers/block/loop.c:2274
 loop_rootcg_workfn+0x28/0x38 drivers/block/loop.c:2305
 process_one_work+0x790/0x11b8 kernel/workqueue.c:2310
 worker_thread+0x910/0x1034 kernel/workqueue.c:2457
 kthread+0x37c/0x45c kernel/kthread.c:334
 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870

Allocated by task 4018:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 ____kasan_kmalloc+0xbc/0xfc mm/kasan/common.c:513
 __kasan_kmalloc+0x10/0x1c mm/kasan/common.c:522
 kasan_kmalloc include/linux/kasan.h:264 [inline]
 __kmalloc+0x29c/0x4c8 mm/slub.c:4407
 kmalloc include/linux/slab.h:596 [inline]
 hfsplus_read_wrapper+0x3b8/0xfc8 fs/hfsplus/wrapper.c:180
 hfsplus_fill_super+0x2f0/0x167c fs/hfsplus/super.c:413
 mount_bdev+0x274/0x370 fs/super.c:1400
 hfsplus_mount+0x44/0x58 fs/hfsplus/super.c:641
 legacy_get_tree+0xd4/0x16c fs/fs_context.c:611
 vfs_get_tree+0x90/0x274 fs/super.c:1530
 do_new_mount+0x278/0x8fc fs/namespace.c:3012
 path_mount+0x594/0x101c fs/namespace.c:3342
 do_mount fs/namespace.c:3355 [inline]
 __do_sys_mount fs/namespace.c:3563 [inline]
 __se_sys_mount fs/namespace.c:3540 [inline]
 __arm64_sys_mount+0x510/0x5e0 fs/namespace.c:3540
 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline]
 invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52
 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142
 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181
 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584

The buggy address belongs to the object at ffff0000d9ecfc00
 which belongs to the cache kmalloc-512 of size 512
The buggy address is located 0 bytes inside of
 512-byte region [ffff0000d9ecfc00, ffff0000d9ecfe00)
The buggy address belongs to the page:
page:00000000b1b74434 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x119ecc
head:00000000b1b74434 order:2 compound_mapcount:0 compound_pincount:0
flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff)
raw: 05ffc00000010200 fffffc0003467600 0000000500000005 ffff0000c0002600
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected

Memory state around the buggy address:
 ffff0000d9ecfd00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 ffff0000d9ecfd80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
>ffff0000d9ecfe00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
                   ^
 ffff0000d9ecfe80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
 ffff0000d9ecff00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================