==================================================================
BUG: KASAN: slab-use-after-free in jfs_free_inode+0xf8/0x100 fs/jfs/super.c:117
Write of size 8 at addr ffff88802c11f028 by task dhcpcd-run-hook/5606
CPU: 1 PID: 5606 Comm: dhcpcd-run-hook Not tainted 6.6.0-rc6-syzkaller-00355-gfe3cfe869d5e-dirty #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xd9/0x1b0 lib/dump_stack.c:106
print_address_description mm/kasan/report.c:364 [inline]
print_report+0xc4/0x620 mm/kasan/report.c:475
kasan_report+0xda/0x110 mm/kasan/report.c:588
jfs_free_inode+0xf8/0x100 fs/jfs/super.c:117
i_callback+0x43/0x70 fs/inode.c:248
rcu_do_batch kernel/rcu/tree.c:2139 [inline]
rcu_core+0x805/0x1bb0 kernel/rcu/tree.c:2403
__do_softirq+0x218/0x965 kernel/softirq.c:553
invoke_softirq kernel/softirq.c:427 [inline]
__irq_exit_rcu kernel/softirq.c:632 [inline]
irq_exit_rcu+0xb7/0x120 kernel/softirq.c:644
sysvec_apic_timer_interrupt+0x93/0xc0 arch/x86/kernel/apic/apic.c:1074
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:645
RIP: 0010:deref_stack_reg arch/x86/kernel/unwind_orc.c:403 [inline]
RIP: 0010:unwind_next_frame+0x1a85/0x2390 arch/x86/kernel/unwind_orc.c:648
Code: c6 84 c9 0f 95 c1 40 84 ce 0f 85 88 08 00 00 83 e0 07 38 c2 0f 9e c1 84 d2 0f 95 c0 84 c1 0f 85 73 08 00 00 4d 0f bf 64 24 02 08 00 00 00 48 89 df 4d 01 ec 4c 89 e6 e8 f8 e2 ff ff 31 ff 41
RSP: 0018:ffffc9000360f528 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc9000360f5a8 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffffff8f5fe9e0
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000004
R10: 0000000000000001 R11: 0000000000000001 R12: ffffffffffffffe0
R13: ffffc9000360f930 R14: 0000000000000001 R15: 0000000000000001
arch_stack_walk+0xfa/0x170 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x96/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
__kasan_slab_alloc+0x81/0x90 mm/kasan/common.c:328
kasan_slab_alloc include/linux/kasan.h:188 [inline]
slab_post_alloc_hook mm/slab.h:762 [inline]
slab_alloc_node mm/slab.c:3237 [inline]
slab_alloc mm/slab.c:3246 [inline]
__kmem_cache_alloc_lru mm/slab.c:3423 [inline]
kmem_cache_alloc+0x159/0x400 mm/slab.c:3432
vm_area_dup+0x21/0x2f0 kernel/fork.c:500
dup_mmap+0x93c/0x1d80 kernel/fork.c:710
dup_mm kernel/fork.c:1686 [inline]
copy_mm kernel/fork.c:1735 [inline]
copy_process+0x6bff/0x73f0 kernel/fork.c:2501
kernel_clone+0xfd/0x920 kernel/fork.c:2909
__do_sys_clone+0xba/0x100 kernel/fork.c:3052
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f0e3f393a12
Code: 41 5d 41 5e 41 5f c3 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 76 10 48 8b 15 e7 43 0f 00 f7 d8 64 89 02 48 83
RSP: 002b:00007fff35d052e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f0e3f393a12
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 000056225d3c9930 R08: 0000000000000000 R09: 00007f0e3f488b20
R10: 00007f0e3f259650 R11: 0000000000000246 R12: 0000000000000084
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000024
Allocated by task 5598:
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
____kasan_kmalloc mm/kasan/common.c:374 [inline]
__kasan_kmalloc+0xa3/0xb0 mm/kasan/common.c:383
kmalloc include/linux/slab.h:599 [inline]
kzalloc include/linux/slab.h:720 [inline]
jfs_fill_super+0xe5/0xd20 fs/jfs/super.c:497
mount_bdev+0x1f3/0x2e0 fs/super.c:1629
legacy_get_tree+0x109/0x220 fs/fs_context.c:662
vfs_get_tree+0x8c/0x370 fs/super.c:1750
do_new_mount fs/namespace.c:3335 [inline]
path_mount+0x1492/0x1ed0 fs/namespace.c:3662
do_mount fs/namespace.c:3675 [inline]
__do_sys_mount fs/namespace.c:3884 [inline]
__se_sys_mount fs/namespace.c:3861 [inline]
__x64_sys_mount+0x293/0x310 fs/namespace.c:3861
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
Freed by task 5598:
kasan_save_stack+0x33/0x50 mm/kasan/common.c:45
kasan_set_track+0x25/0x30 mm/kasan/common.c:52
kasan_save_free_info+0x28/0x40 mm/kasan/generic.c:522
____kasan_slab_free mm/kasan/common.c:236 [inline]
____kasan_slab_free+0x138/0x190 mm/kasan/common.c:200
kasan_slab_free include/linux/kasan.h:164 [inline]
__cache_free mm/slab.c:3370 [inline]
__do_kmem_cache_free mm/slab.c:3557 [inline]
__kmem_cache_free+0xcc/0x2d0 mm/slab.c:3564
jfs_fill_super+0x7c7/0xd20 fs/jfs/super.c:614
mount_bdev+0x1f3/0x2e0 fs/super.c:1629
legacy_get_tree+0x109/0x220 fs/fs_context.c:662
vfs_get_tree+0x8c/0x370 fs/super.c:1750
do_new_mount fs/namespace.c:3335 [inline]
path_mount+0x1492/0x1ed0 fs/namespace.c:3662
do_mount fs/namespace.c:3675 [inline]
__do_sys_mount fs/namespace.c:3884 [inline]
__se_sys_mount fs/namespace.c:3861 [inline]
__x64_sys_mount+0x293/0x310 fs/namespace.c:3861
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x38/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
The buggy address belongs to the object at ffff88802c11f000
which belongs to the cache kmalloc-256 of size 256
The buggy address is located 40 bytes inside of
freed 256-byte region [ffff88802c11f000, ffff88802c11f100)
The buggy address belongs to the physical page:
page:ffffea0000b047c0 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2c11f
flags: 0xfff00000000800(slab|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0x8()
raw: 00fff00000000800 ffff888012c40500 ffffea0001e2a950 ffffea0001878ed0
raw: 0000000000000000 ffff88802c11f000 0000000100000008 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 0x3420c0(__GFP_IO|__GFP_FS|__GFP_NOWARN|__GFP_COMP|__GFP_HARDWALL|__GFP_THISNODE), pid 5406, tgid 5406 (syz-executor.1), ts 113494436089, free_ts 113409130595
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x2cf/0x340 mm/page_alloc.c:1536
prep_new_page mm/page_alloc.c:1543 [inline]
get_page_from_freelist+0xee0/0x2f20 mm/page_alloc.c:3170
__alloc_pages+0x1d0/0x4a0 mm/page_alloc.c:4426
__alloc_pages_node include/linux/gfp.h:237 [inline]
kmem_getpages mm/slab.c:1356 [inline]
cache_grow_begin+0x99/0x3a0 mm/slab.c:2550
cache_alloc_refill+0x294/0x3a0 mm/slab.c:2923
____cache_alloc mm/slab.c:2999 [inline]
____cache_alloc mm/slab.c:2982 [inline]
__do_cache_alloc mm/slab.c:3182 [inline]
slab_alloc_node mm/slab.c:3230 [inline]
__kmem_cache_alloc_node+0x3c5/0x470 mm/slab.c:3521
kmalloc_trace+0x25/0xe0 mm/slab_common.c:1117
kmalloc include/linux/slab.h:599 [inline]
kzalloc include/linux/slab.h:720 [inline]
____ip_mc_inc_group+0x273/0xcf0 net/ipv4/igmp.c:1450
__ip_mc_inc_group net/ipv4/igmp.c:1485 [inline]
ip_mc_inc_group net/ipv4/igmp.c:1491 [inline]
ip_mc_up+0x14f/0x3a0 net/ipv4/igmp.c:1790
inetdev_event+0xbc6/0x1900 net/ipv4/devinet.c:1598
notifier_call_chain+0xb6/0x3b0 kernel/notifier.c:93
call_netdevice_notifiers_info+0xb9/0x130 net/core/dev.c:1995
call_netdevice_notifiers_extack net/core/dev.c:2033 [inline]
call_netdevice_notifiers net/core/dev.c:2047 [inline]
__dev_notify_flags+0x12d/0x2e0 net/core/dev.c:8665
dev_change_flags+0x122/0x170 net/core/dev.c:8703
do_setlink+0x1a2a/0x3fa0 net/core/rtnetlink.c:2880
__rtnl_newlink+0xc1d/0x1940 net/core/rtnetlink.c:3671
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1136 [inline]
free_unref_page_prepare+0x476/0xa40 mm/page_alloc.c:2312
free_unref_page+0x33/0x3b0 mm/page_alloc.c:2405
slab_destroy mm/slab.c:1608 [inline]
slabs_destroy+0x85/0xc0 mm/slab.c:1628
cache_flusharray mm/slab.c:3341 [inline]
___cache_free+0x2b7/0x420 mm/slab.c:3404
qlink_free mm/kasan/quarantine.c:166 [inline]
qlist_free_all+0x4c/0x1b0 mm/kasan/quarantine.c:185
kasan_quarantine_reduce+0x18e/0x1d0 mm/kasan/quarantine.c:292
__kasan_slab_alloc+0x65/0x90 mm/kasan/common.c:305
kasan_slab_alloc include/linux/kasan.h:188 [inline]
slab_post_alloc_hook mm/slab.h:762 [inline]
slab_alloc_node mm/slab.c:3237 [inline]
kmem_cache_alloc_node+0x173/0x540 mm/slab.c:3509
__alloc_skb+0x287/0x330 net/core/skbuff.c:640
alloc_skb include/linux/skbuff.h:1286 [inline]
alloc_skb_with_frags+0xe4/0x710 net/core/skbuff.c:6313
sock_alloc_send_pskb+0x7e4/0x970 net/core/sock.c:2795
sock_alloc_send_skb include/net/sock.h:1883 [inline]
mld_newpack.isra.0+0x1ee/0x790 net/ipv6/mcast.c:1746
add_grhead+0x295/0x340 net/ipv6/mcast.c:1849
add_grec+0x10bb/0x1680 net/ipv6/mcast.c:1987
mld_send_initial_cr.part.0+0xe2/0x260 net/ipv6/mcast.c:2234
mld_send_initial_cr net/ipv6/mcast.c:2225 [inline]
mld_dad_work+0x57/0x2e0 net/ipv6/mcast.c:2260
Memory state around the buggy address:
ffff88802c11ef00: 00 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc
ffff88802c11ef80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
>ffff88802c11f000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff88802c11f080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff88802c11f100: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc
==================================================================
----------------
Code disassembly (best guess), 1 bytes skipped:
0: 84 c9 test %cl,%cl
2: 0f 95 c1 setne %cl
5: 40 84 ce test %cl,%sil
8: 0f 85 88 08 00 00 jne 0x896
e: 83 e0 07 and $0x7,%eax
11: 38 c2 cmp %al,%dl
13: 0f 9e c1 setle %cl
16: 84 d2 test %dl,%dl
18: 0f 95 c0 setne %al
1b: 84 c1 test %al,%cl
1d: 0f 85 73 08 00 00 jne 0x896
23: 4d 0f bf 64 24 02 movswq 0x2(%r12),%r12
* 29: ba 08 00 00 00 mov $0x8,%edx <-- trapping instruction
2e: 48 89 df mov %rbx,%rdi
31: 4d 01 ec add %r13,%r12
34: 4c 89 e6 mov %r12,%rsi
37: e8 f8 e2 ff ff call 0xffffe334
3c: 31 ff xor %edi,%edi
3e: 41 rex.B