[v6.1] KASAN: use-after-free Read in jfs_syncpt
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syzbot
Apr 12, 2024, 2:15:25 PMApr 12
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: bf1e3b1cb1e0 Linux 6.1.85
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1311c2fb180000
kernel config: https://syzkaller.appspot.com/x/.config?x=d3e21b90946dbbab
dashboard link: https://syzkaller.appspot.com/bug?extid=ef99cf250087631e7fb1
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/75265c862e54/disk-bf1e3b1c.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/1d22ca40ea90/vmlinux-bf1e3b1c.xz
kernel image: https://storage.googleapis.com/syzbot-assets/a5fcb5ebd870/bzImage-bf1e3b1c.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ef99cf...@syzkaller.appspotmail.com
==================================================================
BUG: KASAN: use-after-free in __mutex_waiter_is_first kernel/locking/mutex.c:197 [inline]
BUG: KASAN: use-after-free in __mutex_lock_common kernel/locking/mutex.c:681 [inline]
BUG: KASAN: use-after-free in __mutex_lock+0x6d2/0xd80 kernel/locking/mutex.c:747
Read of size 8 at addr ffff8880580c3108 by task jfsCommit/132
CPU: 0 PID: 132 Comm: jfsCommit Not tainted 6.1.85-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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:284 [inline]
print_report+0x15f/0x4f0 mm/kasan/report.c:395
kasan_report+0x136/0x160 mm/kasan/report.c:495
__mutex_waiter_is_first kernel/locking/mutex.c:197 [inline]
__mutex_lock_common kernel/locking/mutex.c:681 [inline]
__mutex_lock+0x6d2/0xd80 kernel/locking/mutex.c:747
jfs_syncpt+0x22/0x90 fs/jfs/jfs_logmgr.c:1039
txEnd+0x30b/0x560 fs/jfs/jfs_txnmgr.c:549
txLazyCommit fs/jfs/jfs_txnmgr.c:2684 [inline]
jfs_lazycommit+0x610/0xb60 fs/jfs/jfs_txnmgr.c:2732
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
</TASK>
Allocated by task 12672:
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
kmalloc include/linux/slab.h:556 [inline]
kzalloc include/linux/slab.h:692 [inline]
open_inline_log fs/jfs/jfs_logmgr.c:1159 [inline]
lmLogOpen+0x314/0x1030 fs/jfs/jfs_logmgr.c:1069
jfs_mount_rw+0xe3/0x640 fs/jfs/jfs_mount.c:253
jfs_fill_super+0x67d/0xc40 fs/jfs/super.c:565
mount_bdev+0x2c9/0x3f0 fs/super.c:1432
legacy_get_tree+0xeb/0x180 fs/fs_context.c:632
vfs_get_tree+0x88/0x270 fs/super.c:1562
do_new_mount+0x2ba/0xb40 fs/namespace.c:3051
do_mount fs/namespace.c:3394 [inline]
__do_sys_mount fs/namespace.c:3602 [inline]
__se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3579
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
Freed by task 12239:
kasan_save_stack mm/kasan/common.c:45 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:516
____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
kasan_slab_free include/linux/kasan.h:177 [inline]
slab_free_hook mm/slub.c:1724 [inline]
slab_free_freelist_hook mm/slub.c:1750 [inline]
slab_free mm/slub.c:3661 [inline]
__kmem_cache_free+0x25c/0x3c0 mm/slub.c:3674
lmLogClose+0x29d/0x530
jfs_umount+0x298/0x370 fs/jfs/jfs_umount.c:116
jfs_put_super+0x86/0x180 fs/jfs/super.c:194
generic_shutdown_super+0x130/0x340 fs/super.c:501
kill_block_super+0x7a/0xe0 fs/super.c:1459
deactivate_locked_super+0xa0/0x110 fs/super.c:332
cleanup_mnt+0x490/0x520 fs/namespace.c:1186
task_work_run+0x246/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:177
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x68/0xd2
Last potentially related work creation:
kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45
__kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:486
kvfree_call_rcu+0x116/0x8c0 kernel/rcu/tree.c:3400
neigh_flush_dev+0x188/0xae0 net/core/neighbour.c:429
__neigh_ifdown+0x45/0x3f0 net/core/neighbour.c:446
neigh_ifdown+0x1b/0x30 net/core/neighbour.c:464
rt6_disable_ip+0x830/0x890 net/ipv6/route.c:4902
addrconf_ifdown+0x154/0x1b90 net/ipv6/addrconf.c:3780
addrconf_notify+0x3ec/0xf60
notifier_call_chain kernel/notifier.c:87 [inline]
raw_notifier_call_chain+0xd0/0x170 kernel/notifier.c:455
call_netdevice_notifiers_info net/core/dev.c:1970 [inline]
call_netdevice_notifiers_extack net/core/dev.c:2008 [inline]
call_netdevice_notifiers net/core/dev.c:2022 [inline]
dev_close_many+0x37c/0x530 net/core/dev.c:1570
unregister_netdevice_many+0x4f7/0x17a0 net/core/dev.c:10855
default_device_exit_batch+0x956/0x9d0 net/core/dev.c:11394
ops_exit_list net/core/net_namespace.c:174 [inline]
cleanup_net+0x763/0xb60 net/core/net_namespace.c:601
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Second to last potentially related work creation:
kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45
__kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:486
kvfree_call_rcu+0x116/0x8c0 kernel/rcu/tree.c:3400
neigh_del net/core/neighbour.c:225 [inline]
neigh_remove_one+0x5c6/0x6d0 net/core/neighbour.c:246
neigh_forced_gc net/core/neighbour.c:279 [inline]
neigh_alloc net/core/neighbour.c:485 [inline]
___neigh_create+0x459/0x24b0 net/core/neighbour.c:648
ip6_finish_output2+0x14e0/0x1520 net/ipv6/ip6_output.c:125
__ip6_finish_output net/ipv6/ip6_output.c:201 [inline]
ip6_finish_output+0x6a0/0xa80 net/ipv6/ip6_output.c:212
dst_output include/net/dst.h:444 [inline]
NF_HOOK include/linux/netfilter.h:302 [inline]
ndisc_send_skb+0xbab/0x14e0 net/ipv6/ndisc.c:509
addrconf_rs_timer+0x357/0x610 net/ipv6/addrconf.c:3961
call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504
expire_timers kernel/time/timer.c:1549 [inline]
__run_timers+0x67c/0x890 kernel/time/timer.c:1820
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
__do_softirq+0x2e9/0xa4c kernel/softirq.c:571
The buggy address belongs to the object at ffff8880580c3000
which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 264 bytes inside of
1024-byte region [ffff8880580c3000, ffff8880580c3400)
The buggy address belongs to the physical page:
page:ffffea0001603000 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x580c0
head:ffffea0001603000 order:3 compound_mapcount:0 compound_pincount:0
flags: 0xfff80000010200(slab|head|node=0|zone=1|lastcpupid=0xfff)
raw: 00fff80000010200 0000000000000000 dead000000000001 ffff888012441dc0
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 3572, tgid 3572 (syz-executor.2), ts 70319164412, free_ts 15946162793
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2513
prep_new_page mm/page_alloc.c:2520 [inline]
get_page_from_freelist+0x31a1/0x3320 mm/page_alloc.c:4279
__alloc_pages+0x28d/0x770 mm/page_alloc.c:5547
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:954 [inline]
__kmalloc_node_track_caller+0xa0/0x220 mm/slab_common.c:975
kmalloc_reserve net/core/skbuff.c:446 [inline]
__alloc_skb+0x135/0x670 net/core/skbuff.c:515
alloc_skb include/linux/skbuff.h:1271 [inline]
nlmsg_new include/net/netlink.h:991 [inline]
inet6_rt_notify+0xdc/0x280 net/ipv6/route.c:6167
fib6_add_rt2node net/ipv6/ip6_fib.c:1252 [inline]
fib6_add+0x1db2/0x3c80 net/ipv6/ip6_fib.c:1478
__ip6_ins_rt net/ipv6/route.c:1305 [inline]
ip6_route_add+0x84/0x120 net/ipv6/route.c:3848
addrconf_prefix_route net/ipv6/addrconf.c:2441 [inline]
fixup_permanent_addr net/ipv6/addrconf.c:3525 [inline]
addrconf_permanent_addr+0x7da/0xc70 net/ipv6/addrconf.c:3549
addrconf_notify+0x88f/0xf60 net/ipv6/addrconf.c:3621
notifier_call_chain kernel/notifier.c:87 [inline]
raw_notifier_call_chain+0xd0/0x170 kernel/notifier.c:455
__dev_notify_flags+0x304/0x610
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1440 [inline]
free_pcp_prepare mm/page_alloc.c:1490 [inline]
free_unref_page_prepare+0xf63/0x1120 mm/page_alloc.c:3358
free_unref_page+0x33/0x3e0 mm/page_alloc.c:3453
free_contig_range+0x9a/0x150 mm/page_alloc.c:9507
destroy_args+0xfe/0x997 mm/debug_vm_pgtable.c:1031
debug_vm_pgtable+0x416/0x46b mm/debug_vm_pgtable.c:1354
do_one_initcall+0x265/0x8f0 init/main.c:1297
do_initcall_level+0x157/0x207 init/main.c:1370
do_initcalls+0x49/0x86 init/main.c:1386
kernel_init_freeable+0x45c/0x60f init/main.c:1625
kernel_init+0x19/0x290 init/main.c:1513
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Memory state around the buggy address:
ffff8880580c3000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880580c3080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8880580c3100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8880580c3180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880580c3200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
syzbot found the following issue on:
HEAD commit: bf1e3b1cb1e0 Linux 6.1.85
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1311c2fb180000
kernel config: https://syzkaller.appspot.com/x/.config?x=d3e21b90946dbbab
dashboard link: https://syzkaller.appspot.com/bug?extid=ef99cf250087631e7fb1
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/75265c862e54/disk-bf1e3b1c.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/1d22ca40ea90/vmlinux-bf1e3b1c.xz
kernel image: https://storage.googleapis.com/syzbot-assets/a5fcb5ebd870/bzImage-bf1e3b1c.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+ef99cf...@syzkaller.appspotmail.com
==================================================================
BUG: KASAN: use-after-free in __mutex_waiter_is_first kernel/locking/mutex.c:197 [inline]
BUG: KASAN: use-after-free in __mutex_lock_common kernel/locking/mutex.c:681 [inline]
BUG: KASAN: use-after-free in __mutex_lock+0x6d2/0xd80 kernel/locking/mutex.c:747
Read of size 8 at addr ffff8880580c3108 by task jfsCommit/132
CPU: 0 PID: 132 Comm: jfsCommit Not tainted 6.1.85-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
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:284 [inline]
print_report+0x15f/0x4f0 mm/kasan/report.c:395
kasan_report+0x136/0x160 mm/kasan/report.c:495
__mutex_waiter_is_first kernel/locking/mutex.c:197 [inline]
__mutex_lock_common kernel/locking/mutex.c:681 [inline]
__mutex_lock+0x6d2/0xd80 kernel/locking/mutex.c:747
jfs_syncpt+0x22/0x90 fs/jfs/jfs_logmgr.c:1039
txEnd+0x30b/0x560 fs/jfs/jfs_txnmgr.c:549
txLazyCommit fs/jfs/jfs_txnmgr.c:2684 [inline]
jfs_lazycommit+0x610/0xb60 fs/jfs/jfs_txnmgr.c:2732
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
</TASK>
Allocated by task 12672:
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
kmalloc include/linux/slab.h:556 [inline]
kzalloc include/linux/slab.h:692 [inline]
open_inline_log fs/jfs/jfs_logmgr.c:1159 [inline]
lmLogOpen+0x314/0x1030 fs/jfs/jfs_logmgr.c:1069
jfs_mount_rw+0xe3/0x640 fs/jfs/jfs_mount.c:253
jfs_fill_super+0x67d/0xc40 fs/jfs/super.c:565
mount_bdev+0x2c9/0x3f0 fs/super.c:1432
legacy_get_tree+0xeb/0x180 fs/fs_context.c:632
vfs_get_tree+0x88/0x270 fs/super.c:1562
do_new_mount+0x2ba/0xb40 fs/namespace.c:3051
do_mount fs/namespace.c:3394 [inline]
__do_sys_mount fs/namespace.c:3602 [inline]
__se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3579
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
Freed by task 12239:
kasan_save_stack mm/kasan/common.c:45 [inline]
kasan_set_track+0x4b/0x70 mm/kasan/common.c:52
kasan_save_free_info+0x27/0x40 mm/kasan/generic.c:516
____kasan_slab_free+0xd6/0x120 mm/kasan/common.c:236
kasan_slab_free include/linux/kasan.h:177 [inline]
slab_free_hook mm/slub.c:1724 [inline]
slab_free_freelist_hook mm/slub.c:1750 [inline]
slab_free mm/slub.c:3661 [inline]
__kmem_cache_free+0x25c/0x3c0 mm/slub.c:3674
lmLogClose+0x29d/0x530
jfs_umount+0x298/0x370 fs/jfs/jfs_umount.c:116
jfs_put_super+0x86/0x180 fs/jfs/super.c:194
generic_shutdown_super+0x130/0x340 fs/super.c:501
kill_block_super+0x7a/0xe0 fs/super.c:1459
deactivate_locked_super+0xa0/0x110 fs/super.c:332
cleanup_mnt+0x490/0x520 fs/namespace.c:1186
task_work_run+0x246/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:177
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x68/0xd2
Last potentially related work creation:
kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45
__kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:486
kvfree_call_rcu+0x116/0x8c0 kernel/rcu/tree.c:3400
neigh_flush_dev+0x188/0xae0 net/core/neighbour.c:429
__neigh_ifdown+0x45/0x3f0 net/core/neighbour.c:446
neigh_ifdown+0x1b/0x30 net/core/neighbour.c:464
rt6_disable_ip+0x830/0x890 net/ipv6/route.c:4902
addrconf_ifdown+0x154/0x1b90 net/ipv6/addrconf.c:3780
addrconf_notify+0x3ec/0xf60
notifier_call_chain kernel/notifier.c:87 [inline]
raw_notifier_call_chain+0xd0/0x170 kernel/notifier.c:455
call_netdevice_notifiers_info net/core/dev.c:1970 [inline]
call_netdevice_notifiers_extack net/core/dev.c:2008 [inline]
call_netdevice_notifiers net/core/dev.c:2022 [inline]
dev_close_many+0x37c/0x530 net/core/dev.c:1570
unregister_netdevice_many+0x4f7/0x17a0 net/core/dev.c:10855
default_device_exit_batch+0x956/0x9d0 net/core/dev.c:11394
ops_exit_list net/core/net_namespace.c:174 [inline]
cleanup_net+0x763/0xb60 net/core/net_namespace.c:601
process_one_work+0x8a9/0x11d0 kernel/workqueue.c:2292
worker_thread+0xa47/0x1200 kernel/workqueue.c:2439
kthread+0x28d/0x320 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Second to last potentially related work creation:
kasan_save_stack+0x3b/0x60 mm/kasan/common.c:45
__kasan_record_aux_stack+0xb0/0xc0 mm/kasan/generic.c:486
kvfree_call_rcu+0x116/0x8c0 kernel/rcu/tree.c:3400
neigh_del net/core/neighbour.c:225 [inline]
neigh_remove_one+0x5c6/0x6d0 net/core/neighbour.c:246
neigh_forced_gc net/core/neighbour.c:279 [inline]
neigh_alloc net/core/neighbour.c:485 [inline]
___neigh_create+0x459/0x24b0 net/core/neighbour.c:648
ip6_finish_output2+0x14e0/0x1520 net/ipv6/ip6_output.c:125
__ip6_finish_output net/ipv6/ip6_output.c:201 [inline]
ip6_finish_output+0x6a0/0xa80 net/ipv6/ip6_output.c:212
dst_output include/net/dst.h:444 [inline]
NF_HOOK include/linux/netfilter.h:302 [inline]
ndisc_send_skb+0xbab/0x14e0 net/ipv6/ndisc.c:509
addrconf_rs_timer+0x357/0x610 net/ipv6/addrconf.c:3961
call_timer_fn+0x1ad/0x6b0 kernel/time/timer.c:1504
expire_timers kernel/time/timer.c:1549 [inline]
__run_timers+0x67c/0x890 kernel/time/timer.c:1820
run_timer_softirq+0x63/0xf0 kernel/time/timer.c:1833
__do_softirq+0x2e9/0xa4c kernel/softirq.c:571
The buggy address belongs to the object at ffff8880580c3000
which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 264 bytes inside of
1024-byte region [ffff8880580c3000, ffff8880580c3400)
The buggy address belongs to the physical page:
page:ffffea0001603000 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x580c0
head:ffffea0001603000 order:3 compound_mapcount:0 compound_pincount:0
flags: 0xfff80000010200(slab|head|node=0|zone=1|lastcpupid=0xfff)
raw: 00fff80000010200 0000000000000000 dead000000000001 ffff888012441dc0
raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000
page dumped because: kasan: bad access detected
page_owner tracks the page as allocated
page last allocated via order 3, migratetype Unmovable, gfp_mask 0xd2a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_NOMEMALLOC), pid 3572, tgid 3572 (syz-executor.2), ts 70319164412, free_ts 15946162793
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x18d/0x1b0 mm/page_alloc.c:2513
prep_new_page mm/page_alloc.c:2520 [inline]
get_page_from_freelist+0x31a1/0x3320 mm/page_alloc.c:4279
__alloc_pages+0x28d/0x770 mm/page_alloc.c:5547
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:954 [inline]
__kmalloc_node_track_caller+0xa0/0x220 mm/slab_common.c:975
kmalloc_reserve net/core/skbuff.c:446 [inline]
__alloc_skb+0x135/0x670 net/core/skbuff.c:515
alloc_skb include/linux/skbuff.h:1271 [inline]
nlmsg_new include/net/netlink.h:991 [inline]
inet6_rt_notify+0xdc/0x280 net/ipv6/route.c:6167
fib6_add_rt2node net/ipv6/ip6_fib.c:1252 [inline]
fib6_add+0x1db2/0x3c80 net/ipv6/ip6_fib.c:1478
__ip6_ins_rt net/ipv6/route.c:1305 [inline]
ip6_route_add+0x84/0x120 net/ipv6/route.c:3848
addrconf_prefix_route net/ipv6/addrconf.c:2441 [inline]
fixup_permanent_addr net/ipv6/addrconf.c:3525 [inline]
addrconf_permanent_addr+0x7da/0xc70 net/ipv6/addrconf.c:3549
addrconf_notify+0x88f/0xf60 net/ipv6/addrconf.c:3621
notifier_call_chain kernel/notifier.c:87 [inline]
raw_notifier_call_chain+0xd0/0x170 kernel/notifier.c:455
__dev_notify_flags+0x304/0x610
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1440 [inline]
free_pcp_prepare mm/page_alloc.c:1490 [inline]
free_unref_page_prepare+0xf63/0x1120 mm/page_alloc.c:3358
free_unref_page+0x33/0x3e0 mm/page_alloc.c:3453
free_contig_range+0x9a/0x150 mm/page_alloc.c:9507
destroy_args+0xfe/0x997 mm/debug_vm_pgtable.c:1031
debug_vm_pgtable+0x416/0x46b mm/debug_vm_pgtable.c:1354
do_one_initcall+0x265/0x8f0 init/main.c:1297
do_initcall_level+0x157/0x207 init/main.c:1370
do_initcalls+0x49/0x86 init/main.c:1386
kernel_init_freeable+0x45c/0x60f init/main.c:1625
kernel_init+0x19/0x290 init/main.c:1513
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308
Memory state around the buggy address:
ffff8880580c3000: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880580c3080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
>ffff8880580c3100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
^
ffff8880580c3180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8880580c3200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
==================================================================
---
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