Extracting prog: 2m28.485461694s
Minimizing prog: 9m20.942892675s
Simplifying prog options: 0s
Extracting C: 1m11.192392949s
Simplifying C: 9m3.919492634s


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_mount_image$hfs-creat-mknodat
detailed listing:
executing program 0:
syz_mount_image$hfs(&(0x7f0000000180), &(0x7f0000000080)='./file1\x00', 0x84, &(0x7f00000000c0)=ANY=[@ANYRES32=0x0], 0x8b, 0x2bb, &(0x7f00000009c0)="$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")
creat(&(0x7f0000000040)='./file8\x00', 0x10)
mknodat(0xffffffffffffff9c, &(0x7f0000000100)='./file3\x00', 0x0, 0x0)

program crashed: KASAN: slab-out-of-bounds Write in hfs_bnode_read_key
single: successfully extracted reproducer
found reproducer with 3 syscalls
minimizing guilty program
testing program (duration=1m5.43685806s, {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$hfs-creat
detailed listing:
executing program 0:
syz_mount_image$hfs(&(0x7f0000000180), &(0x7f0000000080)='./file1\x00', 0x84, &(0x7f00000000c0)=ANY=[@ANYRES32=0x0], 0x8b, 0x2bb, &(0x7f00000009c0)="$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")
creat(&(0x7f0000000040)='./file8\x00', 0x10)

program did not crash
testing program (duration=1m5.43685806s, {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$hfs-mknodat
detailed listing:
executing program 0:
syz_mount_image$hfs(&(0x7f0000000180), &(0x7f0000000080)='./file1\x00', 0x84, &(0x7f00000000c0)=ANY=[@ANYRES32=0x0], 0x8b, 0x2bb, &(0x7f00000009c0)="$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")
mknodat(0xffffffffffffff9c, &(0x7f0000000100)='./file3\x00', 0x0, 0x0)

program did not crash
testing program (duration=1m5.43685806s, {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}}): creat-mknodat
detailed listing:
executing program 0:
creat(&(0x7f0000000040)='./file8\x00', 0x10)
mknodat(0xffffffffffffff9c, &(0x7f0000000100)='./file3\x00', 0x0, 0x0)

program did not crash
testing program (duration=1m5.43685806s, {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$hfs-creat-mknodat
detailed listing:
executing program 0:
syz_mount_image$hfs(&(0x7f0000000180), &(0x7f0000000080)='./file1\x00', 0x84, &(0x7f00000000c0)=ANY=[@ANYRES32=0x0], 0x8b, 0x2bb, &(0x7f00000009c0)="$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")
creat(0x0, 0x10)
mknodat(0xffffffffffffff9c, &(0x7f0000000100)='./file3\x00', 0x0, 0x0)

program did not crash
testing program (duration=1m5.43685806s, {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$hfs-creat-mknodat
detailed listing:
executing program 0:
syz_mount_image$hfs(&(0x7f0000000180), &(0x7f0000000080)='./file1\x00', 0x84, &(0x7f00000000c0)=ANY=[@ANYRES32=0x0], 0x8b, 0x2bb, &(0x7f00000009c0)="$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")
creat(&(0x7f0000000040)='./file8\x00', 0x10)
mknodat(0xffffffffffffff9c, 0x0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=1m5.43685806s, {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$hfs-creat-mknodat
program crashed: KASAN: slab-out-of-bounds Write in hfs_bnode_read_key
simplifying C reproducer
testing compiled C program (duration=1m5.43685806s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-creat-mknodat
program crashed: KASAN: slab-out-of-bounds Write in hfs_bnode_read_key
testing compiled C program (duration=1m5.43685806s, {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$hfs-creat-mknodat
program crashed: KASAN: slab-out-of-bounds Write in hfs_bnode_read_key
testing compiled C program (duration=1m5.43685806s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-creat-mknodat
program crashed: KASAN: slab-out-of-bounds Write in hfs_bnode_read_key
testing compiled C program (duration=1m5.43685806s, {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$hfs-creat-mknodat
program crashed: KASAN: slab-out-of-bounds Write in hfs_bnode_read_key
testing compiled C program (duration=1m5.43685806s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-creat-mknodat
program crashed: KASAN: slab-out-of-bounds Write in hfs_bnode_read_key
testing compiled C program (duration=1m5.43685806s, {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$hfs-creat-mknodat
program crashed: KASAN: slab-out-of-bounds Write in hfs_bnode_read_key
testing compiled C program (duration=1m5.43685806s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): syz_mount_image$hfs-creat-mknodat
program crashed: KASAN: slab-out-of-bounds Write in hfs_bnode_read_key
reproducing took 22m4.540257882s
repro crashed as (corrupted=false):
loop0: detected capacity change from 0 to 64
==================================================================
BUG: KASAN: slab-out-of-bounds in memcpy_from_page include/linux/highmem.h:393 [inline]
BUG: KASAN: slab-out-of-bounds in hfs_bnode_read fs/hfs/bnode.c:35 [inline]
BUG: KASAN: slab-out-of-bounds in hfs_bnode_read_key+0x2e7/0x430 fs/hfs/bnode.c:70
Write of size 94 at addr ffff88802f365a00 by task syz-executor138/4242

CPU: 1 PID: 4242 Comm: syz-executor138 Not tainted 6.1.130-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:316 [inline]
 print_report+0x15f/0x4f0 mm/kasan/report.c:427
 kasan_report+0x136/0x160 mm/kasan/report.c:531
 kasan_check_range+0x27f/0x290 mm/kasan/generic.c:189
 memcpy+0x3c/0x60 mm/kasan/shadow.c:66
 memcpy_from_page include/linux/highmem.h:393 [inline]
 hfs_bnode_read fs/hfs/bnode.c:35 [inline]
 hfs_bnode_read_key+0x2e7/0x430 fs/hfs/bnode.c:70
 hfs_brec_insert+0x7ef/0xbd0 fs/hfs/brec.c:159
 hfs_cat_create+0x419/0x8e0 fs/hfs/catalog.c:118
 hfs_create+0x62/0xd0 fs/hfs/dir.c:202
 vfs_create+0x306/0x490 fs/namei.c:3184
 do_mknodat+0x338/0x5a0 fs/namei.c:4035
 __do_sys_mknodat fs/namei.c:4063 [inline]
 __se_sys_mknodat fs/namei.c:4060 [inline]
 __x64_sys_mknodat+0xa5/0xc0 fs/namei.c:4060
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fb74ee80ad9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd18deb5d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000103
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb74ee80ad9
RDX: 0000000000000000 RSI: 0000400000000100 RDI: 00000000ffffff9c
RBP: 00007fb74eef45f0 R08: 0000555560ad54c0 R09: 0000555560ad54c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd18deb600
R13: 00007ffd18deb828 R14: 431bde82d7b634db R15: 00007fb74eec903b
 </TASK>

Allocated by task 4242:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 ____kasan_kmalloc mm/kasan/common.c:374 [inline]
 __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:383
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 __do_kmalloc_node mm/slab_common.c:936 [inline]
 __kmalloc+0xb2/0x230 mm/slab_common.c:949
 kmalloc include/linux/slab.h:568 [inline]
 hfs_find_init+0x8c/0x1e0 fs/hfs/bfind.c:21
 hfs_cat_create+0x17d/0x8e0 fs/hfs/catalog.c:96
 hfs_create+0x62/0xd0 fs/hfs/dir.c:202
 vfs_create+0x306/0x490 fs/namei.c:3184
 do_mknodat+0x338/0x5a0 fs/namei.c:4035
 __do_sys_mknodat fs/namei.c:4063 [inline]
 __se_sys_mknodat fs/namei.c:4060 [inline]
 __x64_sys_mknodat+0xa5/0xc0 fs/namei.c:4060
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

The buggy address belongs to the object at ffff88802f365a00
 which belongs to the cache kmalloc-96 of size 96
The buggy address is located 0 bytes inside of
 96-byte region [ffff88802f365a00, ffff88802f365a60)

The buggy address belongs to the physical page:
page:ffffea0000bcd940 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2f365
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000200 ffffea000090b140 dead000000000003 ffff888017c41780
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 0x12c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY), pid 3635, tgid 3635 (udevd), ts 29166761553, free_ts 29159385427
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2532
 prep_new_page mm/page_alloc.c:2539 [inline]
 get_page_from_freelist+0x3731/0x38d0 mm/page_alloc.c:4328
 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5605
 alloc_slab_page+0x6a/0x150 mm/slub.c:1794
 allocate_slab mm/slub.c:1939 [inline]
 new_slab+0x84/0x2d0 mm/slub.c:1992
 ___slab_alloc+0xc20/0x1270 mm/slub.c:3180
 __slab_alloc mm/slub.c:3279 [inline]
 slab_alloc_node mm/slub.c:3364 [inline]
 __kmem_cache_alloc_node+0x19f/0x260 mm/slub.c:3437
 __do_kmalloc_node mm/slab_common.c:935 [inline]
 __kmalloc+0xa1/0x230 mm/slab_common.c:949
 kmalloc include/linux/slab.h:568 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 tomoyo_encode2 security/tomoyo/realpath.c:45 [inline]
 tomoyo_encode+0x26b/0x530 security/tomoyo/realpath.c:80
 tomoyo_realpath_from_path+0x594/0x5d0 security/tomoyo/realpath.c:283
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_check_open_permission+0x240/0x4c0 security/tomoyo/file.c:771
 security_file_open+0x5f/0xa0 security/security.c:1681
 do_dentry_open+0x308/0x10f0 fs/open.c:869
 do_open fs/namei.c:3626 [inline]
 path_openat+0x2644/0x2e60 fs/namei.c:3783
 do_filp_open+0x230/0x480 fs/namei.c:3810
 do_sys_openat2+0x13b/0x4f0 fs/open.c:1318
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1459 [inline]
 free_pcp_prepare mm/page_alloc.c:1509 [inline]
 free_unref_page_prepare+0x12a6/0x15b0 mm/page_alloc.c:3384
 free_unref_page+0x33/0x3e0 mm/page_alloc.c:3479
 qlink_free mm/kasan/quarantine.c:168 [inline]
 qlist_free_all+0x76/0xe0 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x156/0x170 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:305
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook+0x52/0x3a0 mm/slab.h:737
 slab_alloc_node mm/slub.c:3398 [inline]
 slab_alloc mm/slub.c:3406 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3413 [inline]
 kmem_cache_alloc+0x10c/0x2d0 mm/slub.c:3422
 getname_flags+0xb8/0x4f0 fs/namei.c:139
 do_sys_openat2+0xd2/0x4f0 fs/open.c:1312
 do_sys_open fs/open.c:1334 [inline]
 __do_sys_openat fs/open.c:1350 [inline]
 __se_sys_openat fs/open.c:1345 [inline]
 __x64_sys_openat+0x243/0x290 fs/open.c:1345
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

Memory state around the buggy address:
 ffff88802f365900: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
 ffff88802f365980: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
>ffff88802f365a00: 00 00 00 00 00 00 00 00 00 06 fc fc fc fc fc fc
                                              ^
 ffff88802f365a80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
 ffff88802f365b00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
==================================================================

final repro crashed as (corrupted=false):
loop0: detected capacity change from 0 to 64
==================================================================
BUG: KASAN: slab-out-of-bounds in memcpy_from_page include/linux/highmem.h:393 [inline]
BUG: KASAN: slab-out-of-bounds in hfs_bnode_read fs/hfs/bnode.c:35 [inline]
BUG: KASAN: slab-out-of-bounds in hfs_bnode_read_key+0x2e7/0x430 fs/hfs/bnode.c:70
Write of size 94 at addr ffff88802f365a00 by task syz-executor138/4242

CPU: 1 PID: 4242 Comm: syz-executor138 Not tainted 6.1.130-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:316 [inline]
 print_report+0x15f/0x4f0 mm/kasan/report.c:427
 kasan_report+0x136/0x160 mm/kasan/report.c:531
 kasan_check_range+0x27f/0x290 mm/kasan/generic.c:189
 memcpy+0x3c/0x60 mm/kasan/shadow.c:66
 memcpy_from_page include/linux/highmem.h:393 [inline]
 hfs_bnode_read fs/hfs/bnode.c:35 [inline]
 hfs_bnode_read_key+0x2e7/0x430 fs/hfs/bnode.c:70
 hfs_brec_insert+0x7ef/0xbd0 fs/hfs/brec.c:159
 hfs_cat_create+0x419/0x8e0 fs/hfs/catalog.c:118
 hfs_create+0x62/0xd0 fs/hfs/dir.c:202
 vfs_create+0x306/0x490 fs/namei.c:3184
 do_mknodat+0x338/0x5a0 fs/namei.c:4035
 __do_sys_mknodat fs/namei.c:4063 [inline]
 __se_sys_mknodat fs/namei.c:4060 [inline]
 __x64_sys_mknodat+0xa5/0xc0 fs/namei.c:4060
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fb74ee80ad9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd18deb5d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000103
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fb74ee80ad9
RDX: 0000000000000000 RSI: 0000400000000100 RDI: 00000000ffffff9c
RBP: 00007fb74eef45f0 R08: 0000555560ad54c0 R09: 0000555560ad54c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd18deb600
R13: 00007ffd18deb828 R14: 431bde82d7b634db R15: 00007fb74eec903b
 </TASK>

Allocated by task 4242:
 kasan_save_stack mm/kasan/common.c:45 [inline]
 kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
 ____kasan_kmalloc mm/kasan/common.c:374 [inline]
 __kasan_kmalloc+0x97/0xb0 mm/kasan/common.c:383
 kasan_kmalloc include/linux/kasan.h:211 [inline]
 __do_kmalloc_node mm/slab_common.c:936 [inline]
 __kmalloc+0xb2/0x230 mm/slab_common.c:949
 kmalloc include/linux/slab.h:568 [inline]
 hfs_find_init+0x8c/0x1e0 fs/hfs/bfind.c:21
 hfs_cat_create+0x17d/0x8e0 fs/hfs/catalog.c:96
 hfs_create+0x62/0xd0 fs/hfs/dir.c:202
 vfs_create+0x306/0x490 fs/namei.c:3184
 do_mknodat+0x338/0x5a0 fs/namei.c:4035
 __do_sys_mknodat fs/namei.c:4063 [inline]
 __se_sys_mknodat fs/namei.c:4060 [inline]
 __x64_sys_mknodat+0xa5/0xc0 fs/namei.c:4060
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

The buggy address belongs to the object at ffff88802f365a00
 which belongs to the cache kmalloc-96 of size 96
The buggy address is located 0 bytes inside of
 96-byte region [ffff88802f365a00, ffff88802f365a60)

The buggy address belongs to the physical page:
page:ffffea0000bcd940 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2f365
flags: 0xfff00000000200(slab|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000200 ffffea000090b140 dead000000000003 ffff888017c41780
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 0x12c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY), pid 3635, tgid 3635 (udevd), ts 29166761553, free_ts 29159385427
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2532
 prep_new_page mm/page_alloc.c:2539 [inline]
 get_page_from_freelist+0x3731/0x38d0 mm/page_alloc.c:4328
 __alloc_pages+0x28d/0x770 mm/page_alloc.c:5605
 alloc_slab_page+0x6a/0x150 mm/slub.c:1794
 allocate_slab mm/slub.c:1939 [inline]
 new_slab+0x84/0x2d0 mm/slub.c:1992
 ___slab_alloc+0xc20/0x1270 mm/slub.c:3180
 __slab_alloc mm/slub.c:3279 [inline]
 slab_alloc_node mm/slub.c:3364 [inline]
 __kmem_cache_alloc_node+0x19f/0x260 mm/slub.c:3437
 __do_kmalloc_node mm/slab_common.c:935 [inline]
 __kmalloc+0xa1/0x230 mm/slab_common.c:949
 kmalloc include/linux/slab.h:568 [inline]
 kzalloc include/linux/slab.h:699 [inline]
 tomoyo_encode2 security/tomoyo/realpath.c:45 [inline]
 tomoyo_encode+0x26b/0x530 security/tomoyo/realpath.c:80
 tomoyo_realpath_from_path+0x594/0x5d0 security/tomoyo/realpath.c:283
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_check_open_permission+0x240/0x4c0 security/tomoyo/file.c:771
 security_file_open+0x5f/0xa0 security/security.c:1681
 do_dentry_open+0x308/0x10f0 fs/open.c:869
 do_open fs/namei.c:3626 [inline]
 path_openat+0x2644/0x2e60 fs/namei.c:3783
 do_filp_open+0x230/0x480 fs/namei.c:3810
 do_sys_openat2+0x13b/0x4f0 fs/open.c:1318
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1459 [inline]
 free_pcp_prepare mm/page_alloc.c:1509 [inline]
 free_unref_page_prepare+0x12a6/0x15b0 mm/page_alloc.c:3384
 free_unref_page+0x33/0x3e0 mm/page_alloc.c:3479
 qlink_free mm/kasan/quarantine.c:168 [inline]
 qlist_free_all+0x76/0xe0 mm/kasan/quarantine.c:187
 kasan_quarantine_reduce+0x156/0x170 mm/kasan/quarantine.c:294
 __kasan_slab_alloc+0x1f/0x70 mm/kasan/common.c:305
 kasan_slab_alloc include/linux/kasan.h:201 [inline]
 slab_post_alloc_hook+0x52/0x3a0 mm/slab.h:737
 slab_alloc_node mm/slub.c:3398 [inline]
 slab_alloc mm/slub.c:3406 [inline]
 __kmem_cache_alloc_lru mm/slub.c:3413 [inline]
 kmem_cache_alloc+0x10c/0x2d0 mm/slub.c:3422
 getname_flags+0xb8/0x4f0 fs/namei.c:139
 do_sys_openat2+0xd2/0x4f0 fs/open.c:1312
 do_sys_open fs/open.c:1334 [inline]
 __do_sys_openat fs/open.c:1350 [inline]
 __se_sys_openat fs/open.c:1345 [inline]
 __x64_sys_openat+0x243/0x290 fs/open.c:1345
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x68/0xd2

Memory state around the buggy address:
 ffff88802f365900: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
 ffff88802f365980: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
>ffff88802f365a00: 00 00 00 00 00 00 00 00 00 06 fc fc fc fc fc fc
                                              ^
 ffff88802f365a80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc
 ffff88802f365b00: fb fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc
==================================================================