KASAN: use-after-free Read in tls_sk_proto_close
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syzbot
Jan 9, 2018, 11:09:05 AM1/9/18
to avi...@mellanox.com, davej...@fb.com, da...@davemloft.net, il...@mellanox.com, linux-...@vger.kernel.org, net...@vger.kernel.org, syzkall...@googlegroups.com
Hello,
syzkaller hit the following crash on
f4803f1b73f877a571be4c8e531dfcf190acc691
git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git/master
compiler: gcc (GCC) 7.1.1 20170620
.config is attached
Raw console output is attached.
Unfortunately, I don't have any reproducer for this bug yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+904e7c...@syzkaller.appspotmail.com
It will help syzbot understand when the bug is fixed. See footer for
details.
If you forward the report, please keep this part and the footer.
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=24672
sclass=netlink_route_socket pig=17852 comm=syz-executor1
==================================================================
BUG: KASAN: use-after-free in tls_sk_proto_close+0x7a0/0x800
net/tls/tls_main.c:229
Read of size 8 at addr ffff8801d0352d88 by task syz-executor5/17854
CPU: 1 PID: 17854 Comm: syz-executor5 Not tainted 4.15.0-rc5+ #180
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x194/0x257 lib/dump_stack.c:53
print_address_description+0x73/0x250 mm/kasan/report.c:252
kasan_report_error mm/kasan/report.c:351 [inline]
kasan_report+0x25b/0x340 mm/kasan/report.c:409
__asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:430
tls_sk_proto_close+0x7a0/0x800 net/tls/tls_main.c:229
inet_release+0xed/0x1c0 net/ipv4/af_inet.c:427
sock_release+0x8d/0x1e0 net/socket.c:593
sock_close+0x16/0x20 net/socket.c:1121
__fput+0x327/0x7e0 fs/file_table.c:210
____fput+0x15/0x20 fs/file_table.c:244
task_work_run+0x199/0x270 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0x9bb/0x1ad0 kernel/exit.c:865
do_group_exit+0x149/0x400 kernel/exit.c:968
get_signal+0x73f/0x16c0 kernel/signal.c:2335
do_signal+0x90/0x1eb0 arch/x86/kernel/signal.c:809
exit_to_usermode_loop+0x214/0x310 arch/x86/entry/common.c:158
prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline]
syscall_return_slowpath+0x490/0x550 arch/x86/entry/common.c:264
entry_SYSCALL_64_fastpath+0x98/0x9a
RIP: 0033:0x452ac9
RSP: 002b:00007f1de3b34ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 000000000071c0f0 RCX: 0000000000452ac9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000071c0f0
RBP: 000000000071c0f0 R08: 00000000000003a3 R09: 000000000071c0c8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000a2f7ef R14: 00007f1de3b359c0 R15: 0000000000000002
Allocated by task 17823:
save_stack+0x43/0xd0 mm/kasan/kasan.c:447
set_track mm/kasan/kasan.c:459 [inline]
kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:551
kmem_cache_alloc_trace+0x136/0x750 mm/slab.c:3610
kmalloc include/linux/slab.h:499 [inline]
kzalloc include/linux/slab.h:688 [inline]
tls_init+0x4b/0x240 net/tls/tls_main.c:458
tcp_set_ulp+0x159/0x3e0 net/ipv4/tcp_ulp.c:127
do_tcp_setsockopt.isra.37+0x316/0x2130 net/ipv4/tcp.c:2571
tcp_setsockopt+0xb0/0xd0 net/ipv4/tcp.c:2874
sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2978
SYSC_setsockopt net/socket.c:1821 [inline]
SyS_setsockopt+0x189/0x360 net/socket.c:1800
entry_SYSCALL_64_fastpath+0x23/0x9a
Freed by task 17854:
save_stack+0x43/0xd0 mm/kasan/kasan.c:447
set_track mm/kasan/kasan.c:459 [inline]
kasan_slab_free+0x71/0xc0 mm/kasan/kasan.c:524
__cache_free mm/slab.c:3488 [inline]
kfree+0xd6/0x260 mm/slab.c:3803
tls_sk_proto_close+0x4bf/0x800 net/tls/tls_main.c:232
inet_release+0xed/0x1c0 net/ipv4/af_inet.c:427
sock_release+0x8d/0x1e0 net/socket.c:593
sock_close+0x16/0x20 net/socket.c:1121
__fput+0x327/0x7e0 fs/file_table.c:210
____fput+0x15/0x20 fs/file_table.c:244
task_work_run+0x199/0x270 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0x9bb/0x1ad0 kernel/exit.c:865
do_group_exit+0x149/0x400 kernel/exit.c:968
get_signal+0x73f/0x16c0 kernel/signal.c:2335
do_signal+0x90/0x1eb0 arch/x86/kernel/signal.c:809
exit_to_usermode_loop+0x214/0x310 arch/x86/entry/common.c:158
prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline]
syscall_return_slowpath+0x490/0x550 arch/x86/entry/common.c:264
entry_SYSCALL_64_fastpath+0x98/0x9a
The buggy address belongs to the object at ffff8801d0352d00
which belongs to the cache kmalloc-192 of size 192
The buggy address is located 136 bytes inside of
192-byte region [ffff8801d0352d00, ffff8801d0352dc0)
The buggy address belongs to the page:
page:00000000b62f19e5 count:1 mapcount:0 mapping:0000000051db4587 index:0x0
flags: 0x2fffc0000000100(slab)
raw: 02fffc0000000100 ffff8801d0352000 0000000000000000 0000000100000010
raw: ffffea000743c820 ffffea0006fb82e0 ffff8801dac00040 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff8801d0352c80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
ffff8801d0352d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
> ffff8801d0352d80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
^
ffff8801d0352e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8801d0352e80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
==================================================================
---
This bug is generated by a dumb bot. It may contain errors.
See https://goo.gl/tpsmEJ for details.
Direct all questions to syzk...@googlegroups.com.
syzbot will keep track of this bug report.
If you forgot to add the Reported-by tag, once the fix for this bug is
merged
into any tree, please reply to this email with:
#syz fix: exact-commit-title
To mark this as a duplicate of another syzbot report, please reply with:
#syz dup: exact-subject-of-another-report
If it's a one-off invalid bug report, please reply with:
#syz invalid
Note: if the crash happens again, it will cause creation of a new bug
report.
Note: all commands must start from beginning of the line in the email body.
syzkaller hit the following crash on
f4803f1b73f877a571be4c8e531dfcf190acc691
git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git/master
compiler: gcc (GCC) 7.1.1 20170620
.config is attached
Raw console output is attached.
Unfortunately, I don't have any reproducer for this bug yet.
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+904e7c...@syzkaller.appspotmail.com
It will help syzbot understand when the bug is fixed. See footer for
details.
If you forward the report, please keep this part and the footer.
SELinux: unrecognized netlink message: protocol=0 nlmsg_type=24672
sclass=netlink_route_socket pig=17852 comm=syz-executor1
==================================================================
BUG: KASAN: use-after-free in tls_sk_proto_close+0x7a0/0x800
net/tls/tls_main.c:229
Read of size 8 at addr ffff8801d0352d88 by task syz-executor5/17854
CPU: 1 PID: 17854 Comm: syz-executor5 Not tainted 4.15.0-rc5+ #180
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x194/0x257 lib/dump_stack.c:53
print_address_description+0x73/0x250 mm/kasan/report.c:252
kasan_report_error mm/kasan/report.c:351 [inline]
kasan_report+0x25b/0x340 mm/kasan/report.c:409
__asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:430
tls_sk_proto_close+0x7a0/0x800 net/tls/tls_main.c:229
inet_release+0xed/0x1c0 net/ipv4/af_inet.c:427
sock_release+0x8d/0x1e0 net/socket.c:593
sock_close+0x16/0x20 net/socket.c:1121
__fput+0x327/0x7e0 fs/file_table.c:210
____fput+0x15/0x20 fs/file_table.c:244
task_work_run+0x199/0x270 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0x9bb/0x1ad0 kernel/exit.c:865
do_group_exit+0x149/0x400 kernel/exit.c:968
get_signal+0x73f/0x16c0 kernel/signal.c:2335
do_signal+0x90/0x1eb0 arch/x86/kernel/signal.c:809
exit_to_usermode_loop+0x214/0x310 arch/x86/entry/common.c:158
prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline]
syscall_return_slowpath+0x490/0x550 arch/x86/entry/common.c:264
entry_SYSCALL_64_fastpath+0x98/0x9a
RIP: 0033:0x452ac9
RSP: 002b:00007f1de3b34ce8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 000000000071c0f0 RCX: 0000000000452ac9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 000000000071c0f0
RBP: 000000000071c0f0 R08: 00000000000003a3 R09: 000000000071c0c8
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000a2f7ef R14: 00007f1de3b359c0 R15: 0000000000000002
Allocated by task 17823:
save_stack+0x43/0xd0 mm/kasan/kasan.c:447
set_track mm/kasan/kasan.c:459 [inline]
kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:551
kmem_cache_alloc_trace+0x136/0x750 mm/slab.c:3610
kmalloc include/linux/slab.h:499 [inline]
kzalloc include/linux/slab.h:688 [inline]
tls_init+0x4b/0x240 net/tls/tls_main.c:458
tcp_set_ulp+0x159/0x3e0 net/ipv4/tcp_ulp.c:127
do_tcp_setsockopt.isra.37+0x316/0x2130 net/ipv4/tcp.c:2571
tcp_setsockopt+0xb0/0xd0 net/ipv4/tcp.c:2874
sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2978
SYSC_setsockopt net/socket.c:1821 [inline]
SyS_setsockopt+0x189/0x360 net/socket.c:1800
entry_SYSCALL_64_fastpath+0x23/0x9a
Freed by task 17854:
save_stack+0x43/0xd0 mm/kasan/kasan.c:447
set_track mm/kasan/kasan.c:459 [inline]
kasan_slab_free+0x71/0xc0 mm/kasan/kasan.c:524
__cache_free mm/slab.c:3488 [inline]
kfree+0xd6/0x260 mm/slab.c:3803
tls_sk_proto_close+0x4bf/0x800 net/tls/tls_main.c:232
inet_release+0xed/0x1c0 net/ipv4/af_inet.c:427
sock_release+0x8d/0x1e0 net/socket.c:593
sock_close+0x16/0x20 net/socket.c:1121
__fput+0x327/0x7e0 fs/file_table.c:210
____fput+0x15/0x20 fs/file_table.c:244
task_work_run+0x199/0x270 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0x9bb/0x1ad0 kernel/exit.c:865
do_group_exit+0x149/0x400 kernel/exit.c:968
get_signal+0x73f/0x16c0 kernel/signal.c:2335
do_signal+0x90/0x1eb0 arch/x86/kernel/signal.c:809
exit_to_usermode_loop+0x214/0x310 arch/x86/entry/common.c:158
prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline]
syscall_return_slowpath+0x490/0x550 arch/x86/entry/common.c:264
entry_SYSCALL_64_fastpath+0x98/0x9a
The buggy address belongs to the object at ffff8801d0352d00
which belongs to the cache kmalloc-192 of size 192
The buggy address is located 136 bytes inside of
192-byte region [ffff8801d0352d00, ffff8801d0352dc0)
The buggy address belongs to the page:
page:00000000b62f19e5 count:1 mapcount:0 mapping:0000000051db4587 index:0x0
flags: 0x2fffc0000000100(slab)
raw: 02fffc0000000100 ffff8801d0352000 0000000000000000 0000000100000010
raw: ffffea000743c820 ffffea0006fb82e0 ffff8801dac00040 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff8801d0352c80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
ffff8801d0352d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
> ffff8801d0352d80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
^
ffff8801d0352e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8801d0352e80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
==================================================================
---
This bug is generated by a dumb bot. It may contain errors.
See https://goo.gl/tpsmEJ for details.
Direct all questions to syzk...@googlegroups.com.
syzbot will keep track of this bug report.
If you forgot to add the Reported-by tag, once the fix for this bug is
merged
into any tree, please reply to this email with:
#syz fix: exact-commit-title
To mark this as a duplicate of another syzbot report, please reply with:
#syz dup: exact-subject-of-another-report
If it's a one-off invalid bug report, please reply with:
#syz invalid
Note: if the crash happens again, it will cause creation of a new bug
report.
Note: all commands must start from beginning of the line in the email body.
syzbot
Jan 15, 2018, 7:01:02 PM1/15/18
to avi...@mellanox.com, davej...@fb.com, da...@davemloft.net, il...@mellanox.com, linux-...@vger.kernel.org, net...@vger.kernel.org, syzkall...@googlegroups.com
syzkaller has found reproducer for the following crash on
594831a8aba3fd045c3212a3e3bb9788c77b989d
syzkaller reproducer is attached. See https://goo.gl/kgGztJ
for information about syzkaller reproducers
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+904e7c...@syzkaller.appspotmail.com
It will help syzbot understand when the bug is fixed.
TCP: request_sock_TCP: Possible SYN flooding on port 20000. Sending
cookies. Check SNMP counters.
CPU: 1 PID: 3663 Comm: syzkaller186931 Not tainted 4.15.0-rc7+ #190
sock_close+0x16/0x20 net/socket.c:1123
RSP: 002b:00007f715c685db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00000000006dac24 RCX: 00000000004457a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000006dac24
RBP: 00000000006dac20 R08: 0000000000000000 R09: 0000000000000000
Allocated by task 3663:
SyS_setsockopt+0x189/0x360 net/socket.c:1802
entry_SYSCALL_64_fastpath+0x23/0x9a
Freed by task 3663:
sock_close+0x16/0x20 net/socket.c:1123
index:0xffff8801d3329d00
flags: 0x2fffc0000000100(slab)
raw: 02fffc0000000100 ffff8801d3329000 ffff8801d3329d00 000000010000000e
raw: ffffea00075198a0 ffffea0007474160 ffff8801dac00040 0000000000000000
ffff8801d3329c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
> ffff8801d3329c80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
^
ffff8801d3329d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8801d3329d80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
==================================================================
594831a8aba3fd045c3212a3e3bb9788c77b989d
git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git/master
compiler: gcc (GCC) 7.1.1 20170620
.config is attached
Raw console output is attached.
C reproducer is attached
compiler: gcc (GCC) 7.1.1 20170620
.config is attached
Raw console output is attached.
syzkaller reproducer is attached. See https://goo.gl/kgGztJ
for information about syzkaller reproducers
IMPORTANT: if you fix the bug, please add the following tag to the commit:
Reported-by: syzbot+904e7c...@syzkaller.appspotmail.com
It will help syzbot understand when the bug is fixed.
cookies. Check SNMP counters.
==================================================================
BUG: KASAN: use-after-free in tls_sk_proto_close+0x7a0/0x800
net/tls/tls_main.c:229
Read of size 8 at addr ffff8801d3329c88 by task syzkaller186931/3663
BUG: KASAN: use-after-free in tls_sk_proto_close+0x7a0/0x800
net/tls/tls_main.c:229
CPU: 1 PID: 3663 Comm: syzkaller186931 Not tainted 4.15.0-rc7+ #190
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x194/0x257 lib/dump_stack.c:53
print_address_description+0x73/0x250 mm/kasan/report.c:252
kasan_report_error mm/kasan/report.c:351 [inline]
kasan_report+0x25b/0x340 mm/kasan/report.c:409
__asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:430
tls_sk_proto_close+0x7a0/0x800 net/tls/tls_main.c:229
inet_release+0xed/0x1c0 net/ipv4/af_inet.c:427
sock_release+0x8d/0x1e0 net/socket.c:595
Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x194/0x257 lib/dump_stack.c:53
print_address_description+0x73/0x250 mm/kasan/report.c:252
kasan_report_error mm/kasan/report.c:351 [inline]
kasan_report+0x25b/0x340 mm/kasan/report.c:409
__asan_report_load8_noabort+0x14/0x20 mm/kasan/report.c:430
tls_sk_proto_close+0x7a0/0x800 net/tls/tls_main.c:229
inet_release+0xed/0x1c0 net/ipv4/af_inet.c:427
sock_close+0x16/0x20 net/socket.c:1123
__fput+0x327/0x7e0 fs/file_table.c:210
____fput+0x15/0x20 fs/file_table.c:244
task_work_run+0x199/0x270 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0x9bb/0x1ad0 kernel/exit.c:865
do_group_exit+0x149/0x400 kernel/exit.c:968
get_signal+0x73f/0x16c0 kernel/signal.c:2335
do_signal+0x90/0x1eb0 arch/x86/kernel/signal.c:809
exit_to_usermode_loop+0x214/0x310 arch/x86/entry/common.c:158
prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline]
syscall_return_slowpath+0x490/0x550 arch/x86/entry/common.c:264
entry_SYSCALL_64_fastpath+0x98/0x9a
RIP: 0033:0x4457a9
____fput+0x15/0x20 fs/file_table.c:244
task_work_run+0x199/0x270 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0x9bb/0x1ad0 kernel/exit.c:865
do_group_exit+0x149/0x400 kernel/exit.c:968
get_signal+0x73f/0x16c0 kernel/signal.c:2335
do_signal+0x90/0x1eb0 arch/x86/kernel/signal.c:809
exit_to_usermode_loop+0x214/0x310 arch/x86/entry/common.c:158
prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline]
syscall_return_slowpath+0x490/0x550 arch/x86/entry/common.c:264
entry_SYSCALL_64_fastpath+0x98/0x9a
RSP: 002b:00007f715c685db8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00000000006dac24 RCX: 00000000004457a9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00000000006dac24
RBP: 00000000006dac20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff9cf582af R14: 00007f715c6869c0 R15: 0000000000000001
Allocated by task 3663:
save_stack+0x43/0xd0 mm/kasan/kasan.c:447
set_track mm/kasan/kasan.c:459 [inline]
kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:551
kmem_cache_alloc_trace+0x136/0x750 mm/slab.c:3610
kmalloc include/linux/slab.h:499 [inline]
kzalloc include/linux/slab.h:688 [inline]
tls_init+0x4b/0x240 net/tls/tls_main.c:458
tcp_set_ulp+0x159/0x3e0 net/ipv4/tcp_ulp.c:127
do_tcp_setsockopt.isra.37+0x316/0x2130 net/ipv4/tcp.c:2571
tcp_setsockopt+0xb0/0xd0 net/ipv4/tcp.c:2874
sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2978
SYSC_setsockopt net/socket.c:1823 [inline]
set_track mm/kasan/kasan.c:459 [inline]
kasan_kmalloc+0xad/0xe0 mm/kasan/kasan.c:551
kmem_cache_alloc_trace+0x136/0x750 mm/slab.c:3610
kmalloc include/linux/slab.h:499 [inline]
kzalloc include/linux/slab.h:688 [inline]
tls_init+0x4b/0x240 net/tls/tls_main.c:458
tcp_set_ulp+0x159/0x3e0 net/ipv4/tcp_ulp.c:127
do_tcp_setsockopt.isra.37+0x316/0x2130 net/ipv4/tcp.c:2571
tcp_setsockopt+0xb0/0xd0 net/ipv4/tcp.c:2874
sock_common_setsockopt+0x95/0xd0 net/core/sock.c:2978
SyS_setsockopt+0x189/0x360 net/socket.c:1802
entry_SYSCALL_64_fastpath+0x23/0x9a
Freed by task 3663:
save_stack+0x43/0xd0 mm/kasan/kasan.c:447
set_track mm/kasan/kasan.c:459 [inline]
kasan_slab_free+0x71/0xc0 mm/kasan/kasan.c:524
__cache_free mm/slab.c:3488 [inline]
kfree+0xd6/0x260 mm/slab.c:3803
tls_sk_proto_close+0x4bf/0x800 net/tls/tls_main.c:232
inet_release+0xed/0x1c0 net/ipv4/af_inet.c:427
sock_release+0x8d/0x1e0 net/socket.c:595
set_track mm/kasan/kasan.c:459 [inline]
kasan_slab_free+0x71/0xc0 mm/kasan/kasan.c:524
__cache_free mm/slab.c:3488 [inline]
kfree+0xd6/0x260 mm/slab.c:3803
tls_sk_proto_close+0x4bf/0x800 net/tls/tls_main.c:232
inet_release+0xed/0x1c0 net/ipv4/af_inet.c:427
sock_close+0x16/0x20 net/socket.c:1123
__fput+0x327/0x7e0 fs/file_table.c:210
____fput+0x15/0x20 fs/file_table.c:244
task_work_run+0x199/0x270 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0x9bb/0x1ad0 kernel/exit.c:865
do_group_exit+0x149/0x400 kernel/exit.c:968
get_signal+0x73f/0x16c0 kernel/signal.c:2335
do_signal+0x90/0x1eb0 arch/x86/kernel/signal.c:809
exit_to_usermode_loop+0x214/0x310 arch/x86/entry/common.c:158
prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline]
syscall_return_slowpath+0x490/0x550 arch/x86/entry/common.c:264
entry_SYSCALL_64_fastpath+0x98/0x9a
The buggy address belongs to the object at ffff8801d3329c00
____fput+0x15/0x20 fs/file_table.c:244
task_work_run+0x199/0x270 kernel/task_work.c:113
exit_task_work include/linux/task_work.h:22 [inline]
do_exit+0x9bb/0x1ad0 kernel/exit.c:865
do_group_exit+0x149/0x400 kernel/exit.c:968
get_signal+0x73f/0x16c0 kernel/signal.c:2335
do_signal+0x90/0x1eb0 arch/x86/kernel/signal.c:809
exit_to_usermode_loop+0x214/0x310 arch/x86/entry/common.c:158
prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline]
syscall_return_slowpath+0x490/0x550 arch/x86/entry/common.c:264
entry_SYSCALL_64_fastpath+0x98/0x9a
which belongs to the cache kmalloc-192 of size 192
The buggy address is located 136 bytes inside of
192-byte region [ffff8801d3329c00, ffff8801d3329cc0)
The buggy address is located 136 bytes inside of
The buggy address belongs to the page:
page:ffffea00074cca40 count:1 mapcount:0 mapping:ffff8801d3329000
index:0xffff8801d3329d00
flags: 0x2fffc0000000100(slab)
raw: 02fffc0000000100 ffff8801d3329000 ffff8801d3329d00 000000010000000e
raw: ffffea00075198a0 ffffea0007474160 ffff8801dac00040 0000000000000000
page dumped because: kasan: bad access detected
Memory state around the buggy address:
ffff8801d3329b80: 00 00 00 00 00 00 00 00 fc fc fc fc fc fc fc fc
Memory state around the buggy address:
ffff8801d3329c00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
> ffff8801d3329c80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
^
ffff8801d3329d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
ffff8801d3329d80: fb fb fb fb fb fb fb fb fc fc fc fc fc fc fc fc
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