==================================================================
BUG: KASAN: use-after-free in stack_trace_consume_entry+0x6c/0x9e kernel/stacktrace.c:93
Write of size 8 at addr ffffaf800f98fa60 by task syz-executor.0/2045

CPU: 0 PID: 2045 Comm: syz-executor.0 Not tainted 5.17.0-rc1-syzkaller-00002-g0966d385830d #0
Hardware name: riscv-virtio,qemu (DT)
Call Trace:
[<ffffffff8000a228>] dump_backtrace+0x2e/0x3c arch/riscv/kernel/stacktrace.c:113
[<ffffffff831668cc>] show_stack+0x34/0x40 arch/riscv/kernel/stacktrace.c:119
[<ffffffff831756ba>] __dump_stack lib/dump_stack.c:88 [inline]
[<ffffffff831756ba>] dump_stack_lvl+0xe4/0x150 lib/dump_stack.c:106
[<ffffffff8047479e>] print_address_description.constprop.0+0x2a/0x330 mm/kasan/report.c:255
[<ffffffff80474d4c>] __kasan_report mm/kasan/report.c:442 [inline]
[<ffffffff80474d4c>] kasan_report+0x184/0x1e0 mm/kasan/report.c:459
[<ffffffff80475bb6>] check_region_inline mm/kasan/generic.c:183 [inline]
[<ffffffff80475bb6>] __asan_store8+0x6e/0x96 mm/kasan/generic.c:256
[<ffffffff80162970>] stack_trace_consume_entry+0x6c/0x9e kernel/stacktrace.c:93
[<ffffffff8000a0b4>] walk_stackframe+0x17e/0x260 arch/riscv/kernel/stacktrace.c:46
[<ffffffff8000a4a4>] arch_stack_walk+0x2c/0x3c arch/riscv/kernel/stacktrace.c:146
[<ffffffff80162ac8>] stack_trace_save+0xa6/0xd8 kernel/stacktrace.c:122
[<ffffffff8049a462>] save_stack+0x112/0x16c mm/page_owner.c:121
[<ffffffff8049adc2>] __set_page_owner+0x48/0x136 mm/page_owner.c:183
[<ffffffff80412f7a>] set_page_owner include/linux/page_owner.h:31 [inline]
[<ffffffff80412f7a>] post_alloc_hook+0xd0/0x10a mm/page_alloc.c:2427
[<ffffffff80416a5c>] prep_new_page mm/page_alloc.c:2434 [inline]
[<ffffffff80416a5c>] get_page_from_freelist+0x8da/0x12d8 mm/page_alloc.c:4165
[<ffffffff80418efa>] __alloc_pages+0x150/0x3b6 mm/page_alloc.c:5389
[<ffffffff8045746a>] alloc_pages+0x132/0x2a6 mm/mempolicy.c:2271
[<ffffffff8046a97e>] alloc_slab_page.constprop.0+0xc2/0xfa mm/slub.c:1799
[<ffffffff8046b1a6>] allocate_slab mm/slub.c:1944 [inline]
[<ffffffff8046b1a6>] new_slab+0x76/0x2cc mm/slub.c:2004
[<ffffffff8046e7ac>] ___slab_alloc+0x56e/0x918 mm/slub.c:3018

Allocated by task 1:
(stack is not available)

Last potentially related work creation:
------------[ cut here ]------------
slab index 1118436 out of bounds (318) for stack id 801110e4
WARNING: CPU: 0 PID: 2045 at lib/stackdepot.c:304 stack_depot_fetch lib/stackdepot.c:304 [inline]
WARNING: CPU: 0 PID: 2045 at lib/stackdepot.c:304 stack_depot_print+0x66/0x70 lib/stackdepot.c:276
Modules linked in:
CPU: 0 PID: 2045 Comm: syz-executor.0 Not tainted 5.17.0-rc1-syzkaller-00002-g0966d385830d #0
Hardware name: riscv-virtio,qemu (DT)
epc : stack_depot_fetch lib/stackdepot.c:304 [inline]
epc : stack_depot_print+0x66/0x70 lib/stackdepot.c:276
 ra : stack_depot_fetch lib/stackdepot.c:304 [inline]
 ra : stack_depot_print+0x66/0x70 lib/stackdepot.c:276
epc : ffffffff80c00b8a ra : ffffffff80c00b8a sp : ffffaf800f98f780
 gp : ffffffff85863ac0 tp : ffffaf8007403080 t0 : ffffffff86bcb657
 t1 : fffff5ef0b53910c t2 : 0000000000000000 s0 : ffffaf800f98f790
 s1 : ffffaf807aaabe40 a0 : 000000000000003c a1 : 00000000000f0000
 a2 : 0000000000000504 a3 : ffffffff8012252a a4 : a23d0919d893f100
 a5 : a23d0919d893f100 a6 : 0000000000f00000 a7 : ffffaf805a9c8863
 s2 : ffffaf800f98fa60 s3 : ffffaf8007201dc0 s4 : ffffaf800f98f800
 s5 : ffffaf800f98fc00 s6 : 0000000000003fff s7 : 0000000000000001
 s8 : ffffffff8045746a s9 : ffffffffffffc000 s10: ffffaf800f98f960
 s11: 0000000000000008 t3 : fffffffff3f3f300 t4 : fffff5ef0b53910c
 t5 : fffff5ef0b53910d t6 : ffffaf800f98f278
status: 0000000000000100 badaddr: 0000000000000000 cause: 0000000000000003
[<ffffffff80474a70>] describe_object_stacks mm/kasan/report.c:216 [inline]
[<ffffffff80474a70>] describe_object mm/kasan/report.c:231 [inline]
[<ffffffff80474a70>] print_address_description.constprop.0+0x2fc/0x330 mm/kasan/report.c:263
[<ffffffff80474d4c>] __kasan_report mm/kasan/report.c:442 [inline]
[<ffffffff80474d4c>] kasan_report+0x184/0x1e0 mm/kasan/report.c:459
[<ffffffff80475bb6>] check_region_inline mm/kasan/generic.c:183 [inline]
[<ffffffff80475bb6>] __asan_store8+0x6e/0x96 mm/kasan/generic.c:256
[<ffffffff80162970>] stack_trace_consume_entry+0x6c/0x9e kernel/stacktrace.c:93
[<ffffffff8000a0b4>] walk_stackframe+0x17e/0x260 arch/riscv/kernel/stacktrace.c:46
[<ffffffff8000a4a4>] arch_stack_walk+0x2c/0x3c arch/riscv/kernel/stacktrace.c:146
[<ffffffff80162ac8>] stack_trace_save+0xa6/0xd8 kernel/stacktrace.c:122
[<ffffffff8049a462>] save_stack+0x112/0x16c mm/page_owner.c:121
[<ffffffff8049adc2>] __set_page_owner+0x48/0x136 mm/page_owner.c:183
[<ffffffff80412f7a>] set_page_owner include/linux/page_owner.h:31 [inline]
[<ffffffff80412f7a>] post_alloc_hook+0xd0/0x10a mm/page_alloc.c:2427
[<ffffffff80416a5c>] prep_new_page mm/page_alloc.c:2434 [inline]
[<ffffffff80416a5c>] get_page_from_freelist+0x8da/0x12d8 mm/page_alloc.c:4165
[<ffffffff80418efa>] __alloc_pages+0x150/0x3b6 mm/page_alloc.c:5389
[<ffffffff8045746a>] alloc_pages+0x132/0x2a6 mm/mempolicy.c:2271
[<ffffffff8046a97e>] alloc_slab_page.constprop.0+0xc2/0xfa mm/slub.c:1799
[<ffffffff8046b1a6>] allocate_slab mm/slub.c:1944 [inline]
[<ffffffff8046b1a6>] new_slab+0x76/0x2cc mm/slub.c:2004
[<ffffffff8046e7ac>] ___slab_alloc+0x56e/0x918 mm/slub.c:3018
irq event stamp: 122055
hardirqs last  enabled at (122054): [<ffffffff8041714a>] rmqueue_pcplist mm/page_alloc.c:3671 [inline]
hardirqs last  enabled at (122054): [<ffffffff8041714a>] rmqueue mm/page_alloc.c:3698 [inline]
hardirqs last  enabled at (122054): [<ffffffff8041714a>] get_page_from_freelist+0xfc8/0x12d8 mm/page_alloc.c:4162
hardirqs last disabled at (122055): [<ffffffff831afa4e>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
hardirqs last disabled at (122055): [<ffffffff831afa4e>] _raw_spin_lock_irqsave+0x60/0x62 kernel/locking/spinlock.c:162
softirqs last  enabled at (121922): [<ffffffff82d70cba>] spin_unlock_bh include/linux/spinlock.h:394 [inline]
softirqs last  enabled at (121922): [<ffffffff82d70cba>] __ip6_ins_rt net/ipv6/route.c:1303 [inline]
softirqs last  enabled at (121922): [<ffffffff82d70cba>] ip6_route_add+0x7e/0x148 net/ipv6/route.c:3857
softirqs last disabled at (121925): [<ffffffff80061288>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (121925): [<ffffffff80061288>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (121925): [<ffffffff80061288>] __irq_exit_rcu+0x142/0x1f8 kernel/softirq.c:637
---[ end trace 0000000000000000 ]---

Second to last potentially related work creation:
------------[ cut here ]------------
slab index 2097151 out of bounds (318) for stack id ffffffff
WARNING: CPU: 0 PID: 2045 at lib/stackdepot.c:304 stack_depot_fetch lib/stackdepot.c:304 [inline]
WARNING: CPU: 0 PID: 2045 at lib/stackdepot.c:304 stack_depot_print+0x66/0x70 lib/stackdepot.c:276
Modules linked in:
CPU: 0 PID: 2045 Comm: syz-executor.0 Tainted: G        W         5.17.0-rc1-syzkaller-00002-g0966d385830d #0
Hardware name: riscv-virtio,qemu (DT)
epc : stack_depot_fetch lib/stackdepot.c:304 [inline]
epc : stack_depot_print+0x66/0x70 lib/stackdepot.c:276
 ra : stack_depot_fetch lib/stackdepot.c:304 [inline]
 ra : stack_depot_print+0x66/0x70 lib/stackdepot.c:276
epc : ffffffff80c00b8a ra : ffffffff80c00b8a sp : ffffaf800f98f780
 gp : ffffffff85863ac0 tp : ffffaf8007403080 t0 : ffffffff86bcb657
 t1 : fffff5ef0b53910c t2 : 0000000000000000 s0 : ffffaf800f98f790
 s1 : ffffaf807aaabe40 a0 : 000000000000003c a1 : 00000000000f0000
 a2 : 0000000000000504 a3 : ffffffff8012252a a4 : a23d0919d893f100
 a5 : a23d0919d893f100 a6 : 0000000000f00000 a7 : ffffaf805a9c8863
 s2 : ffffaf800f98fa60 s3 : ffffaf8007201dc0 s4 : ffffaf800f98f800
 s5 : ffffaf800f98fc00 s6 : 0000000000003fff s7 : 0000000000000001
 s8 : ffffffff8045746a s9 : ffffffffffffc000 s10: ffffaf800f98f960
 s11: 0000000000000008 t3 : fffffffff3f3f300 t4 : fffff5ef0b53910c
 t5 : fffff5ef0b53910d t6 : ffffaf800f98f278
status: 0000000000000100 badaddr: 0000000000000000 cause: 0000000000000003
[<ffffffff80474a22>] describe_object_stacks mm/kasan/report.c:221 [inline]
[<ffffffff80474a22>] describe_object mm/kasan/report.c:231 [inline]
[<ffffffff80474a22>] print_address_description.constprop.0+0x2ae/0x330 mm/kasan/report.c:263
[<ffffffff80474d4c>] __kasan_report mm/kasan/report.c:442 [inline]
[<ffffffff80474d4c>] kasan_report+0x184/0x1e0 mm/kasan/report.c:459
[<ffffffff80475bb6>] check_region_inline mm/kasan/generic.c:183 [inline]
[<ffffffff80475bb6>] __asan_store8+0x6e/0x96 mm/kasan/generic.c:256
[<ffffffff80162970>] stack_trace_consume_entry+0x6c/0x9e kernel/stacktrace.c:93
[<ffffffff8000a0b4>] walk_stackframe+0x17e/0x260 arch/riscv/kernel/stacktrace.c:46
[<ffffffff8000a4a4>] arch_stack_walk+0x2c/0x3c arch/riscv/kernel/stacktrace.c:146
[<ffffffff80162ac8>] stack_trace_save+0xa6/0xd8 kernel/stacktrace.c:122
[<ffffffff8049a462>] save_stack+0x112/0x16c mm/page_owner.c:121
[<ffffffff8049adc2>] __set_page_owner+0x48/0x136 mm/page_owner.c:183
[<ffffffff80412f7a>] set_page_owner include/linux/page_owner.h:31 [inline]
[<ffffffff80412f7a>] post_alloc_hook+0xd0/0x10a mm/page_alloc.c:2427
[<ffffffff80416a5c>] prep_new_page mm/page_alloc.c:2434 [inline]
[<ffffffff80416a5c>] get_page_from_freelist+0x8da/0x12d8 mm/page_alloc.c:4165
[<ffffffff80418efa>] __alloc_pages+0x150/0x3b6 mm/page_alloc.c:5389
[<ffffffff8045746a>] alloc_pages+0x132/0x2a6 mm/mempolicy.c:2271
[<ffffffff8046a97e>] alloc_slab_page.constprop.0+0xc2/0xfa mm/slub.c:1799
[<ffffffff8046b1a6>] allocate_slab mm/slub.c:1944 [inline]
[<ffffffff8046b1a6>] new_slab+0x76/0x2cc mm/slub.c:2004
[<ffffffff8046e7ac>] ___slab_alloc+0x56e/0x918 mm/slub.c:3018
irq event stamp: 122055
hardirqs last  enabled at (122054): [<ffffffff8041714a>] rmqueue_pcplist mm/page_alloc.c:3671 [inline]
hardirqs last  enabled at (122054): [<ffffffff8041714a>] rmqueue mm/page_alloc.c:3698 [inline]
hardirqs last  enabled at (122054): [<ffffffff8041714a>] get_page_from_freelist+0xfc8/0x12d8 mm/page_alloc.c:4162
hardirqs last disabled at (122055): [<ffffffff831afa4e>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
hardirqs last disabled at (122055): [<ffffffff831afa4e>] _raw_spin_lock_irqsave+0x60/0x62 kernel/locking/spinlock.c:162
softirqs last  enabled at (121922): [<ffffffff82d70cba>] spin_unlock_bh include/linux/spinlock.h:394 [inline]
softirqs last  enabled at (121922): [<ffffffff82d70cba>] __ip6_ins_rt net/ipv6/route.c:1303 [inline]
softirqs last  enabled at (121922): [<ffffffff82d70cba>] ip6_route_add+0x7e/0x148 net/ipv6/route.c:3857
softirqs last disabled at (121925): [<ffffffff80061288>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (121925): [<ffffffff80061288>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (121925): [<ffffffff80061288>] __irq_exit_rcu+0x142/0x1f8 kernel/softirq.c:637
---[ end trace 0000000000000000 ]---

The buggy address belongs to the object at ffffaf800f98f800
 which belongs to the cache kmalloc-1k of size 1024
The buggy address is located 608 bytes inside of
 1024-byte region [ffffaf800f98f800, ffffaf800f98fc00)
The buggy address belongs to the page:
page:ffffaf807aaabe40 refcount:1 mapcount:0 mapping:0000000000000000 index:0xffffaf800f98f000 pfn:0x8fb88
head:ffffaf807aaabe40 order:3 compound_mapcount:0 compound_pincount:0
flags: 0x8800010200(slab|head|section=17|node=0|zone=0)
raw: 0000008800010200 ffffaf807aacf788 ffffaf807ab26848 ffffaf8007201dc0
raw: ffffaf800f98f000 0000000000100007 00000001ffffffff 0000000000000000
raw: 00000000000007ff
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 13, ts 467625391700, free_ts 451830716000
 __set_page_owner+0x48/0x136 mm/page_owner.c:183
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0xd0/0x10a mm/page_alloc.c:2427
 prep_new_page mm/page_alloc.c:2434 [inline]
 get_page_from_freelist+0x8da/0x12d8 mm/page_alloc.c:4165
 __alloc_pages+0x150/0x3b6 mm/page_alloc.c:5389
 alloc_pages+0x132/0x2a6 mm/mempolicy.c:2271
 alloc_slab_page.constprop.0+0xc2/0xfa mm/slub.c:1799
 allocate_slab mm/slub.c:1944 [inline]
 new_slab+0x76/0x2cc mm/slub.c:2004
 ___slab_alloc+0x56e/0x918 mm/slub.c:3018
 __slab_alloc.constprop.0+0x50/0x8c mm/slub.c:3105
 slab_alloc_node mm/slub.c:3196 [inline]
 __kmalloc_node_track_caller+0x26c/0x362 mm/slub.c:4957
 kmalloc_reserve net/core/skbuff.c:354 [inline]
 __alloc_skb+0xee/0x2e4 net/core/skbuff.c:426
 __napi_alloc_skb+0x72/0x214 net/core/skbuff.c:568
 napi_alloc_skb include/linux/skbuff.h:3005 [inline]
 page_to_skb+0x16e/0x70e drivers/net/virtio_net.c:437
 receive_mergeable drivers/net/virtio_net.c:1039 [inline]
 receive_buf+0xa20/0x3e50 drivers/net/virtio_net.c:1149
 virtnet_receive drivers/net/virtio_net.c:1441 [inline]
 virtnet_poll+0x39c/0x986 drivers/net/virtio_net.c:1550
 __napi_poll+0x7c/0x358 net/core/dev.c:6365
page last free stack trace:
 __reset_page_owner+0x4a/0xea mm/page_owner.c:142
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1352 [inline]
 free_pcp_prepare+0x29c/0x45e mm/page_alloc.c:1404
 free_unref_page_prepare mm/page_alloc.c:3325 [inline]
 free_unref_page+0x6a/0x31e mm/page_alloc.c:3404
 free_the_page mm/page_alloc.c:706 [inline]
 free_compound_page+0x70/0x8a mm/page_alloc.c:729
 destroy_compound_page include/linux/mm.h:889 [inline]
 __put_compound_page+0x7c/0xb0 mm/swap.c:112
 __put_page+0x48/0x100 mm/swap.c:128
 folio_put include/linux/mm.h:1199 [inline]
 put_page include/linux/mm.h:1237 [inline]
 __skb_frag_unref include/linux/skbuff.h:3178 [inline]
 skb_release_data+0x2f8/0x3c4 net/core/skbuff.c:672
 skb_release_all net/core/skbuff.c:742 [inline]
 __kfree_skb+0x38/0x50 net/core/skbuff.c:756
 __sk_defer_free_flush net/ipv4/tcp.c:1592 [inline]
 sk_defer_free_flush include/net/tcp.h:1378 [inline]
 tcp_recvmsg+0x1f2/0x414 net/ipv4/tcp.c:2566
 inet_recvmsg+0x10a/0x4ba net/ipv4/af_inet.c:850
 sock_recvmsg_nosec net/socket.c:948 [inline]
 sock_recvmsg net/socket.c:966 [inline]
 sock_recvmsg net/socket.c:962 [inline]
 sock_read_iter+0x26c/0x2ba net/socket.c:1039
 call_read_iter include/linux/fs.h:2068 [inline]
 new_sync_read+0x3ae/0x3d8 fs/read_write.c:400
 vfs_read+0x2ce/0x324 fs/read_write.c:481
 ksys_read+0x1c4/0x224 fs/read_write.c:619
 __do_sys_read fs/read_write.c:629 [inline]
 sys_read+0x28/0x36 fs/read_write.c:627
 ret_from_syscall+0x0/0x2

Memory state around the buggy address:
 ffffaf800f98f900: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 00 f3
 ffffaf800f98f980: f3 f3 f3 f3 00 00 00 00 00 00 00 00 00 00 00 00
>ffffaf800f98fa00: fb fb fb fb f1 f1 f1 f1 00 00 00 00 fb fb fb fb
                                                       ^
 ffffaf800f98fa80: 00 00 00 00 00 00 00 00 f3 f3 f3 f3 00 00 00 00
 ffffaf800f98fb00: 00 00 00 00 00 00 00 00 00 00 00 00 fb fb fb fb
==================================================================