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| author | Atul Gupta <atul.gupta@chelsio.com> | 2018-12-11 02:20:09 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-12-14 13:39:39 -0800 |
| commit | df9d4a1780223c3ddd4bf0810079b5a75251554e (patch) | |
| tree | 76930eff88ae5165b3f15fd40d445fbe62242c0b /Makefile | |
| parent | 6c0563e442528733219afe15c749eb2cc365da3f (diff) | |
| download | linux-df9d4a1780223c3ddd4bf0810079b5a75251554e.tar.gz linux-df9d4a1780223c3ddd4bf0810079b5a75251554e.tar.bz2 linux-df9d4a1780223c3ddd4bf0810079b5a75251554e.zip | |
net/tls: sleeping function from invalid context
HW unhash within mutex for registered tls devices cause sleep
when called from tcp_set_state for TCP_CLOSE. Release lock and
re-acquire after function call with ref count incr/dec.
defined kref and fp release for tls_device to ensure device
is not released outside lock.
BUG: sleeping function called from invalid context at
kernel/locking/mutex.c:748
in_atomic(): 1, irqs_disabled(): 0, pid: 0, name: swapper/7
INFO: lockdep is turned off.
CPU: 7 PID: 0 Comm: swapper/7 Tainted: G W O
Call Trace:
<IRQ>
dump_stack+0x5e/0x8b
___might_sleep+0x222/0x260
__mutex_lock+0x5c/0xa50
? vprintk_emit+0x1f3/0x440
? kmem_cache_free+0x22d/0x2a0
? tls_hw_unhash+0x2f/0x80
? printk+0x52/0x6e
? tls_hw_unhash+0x2f/0x80
tls_hw_unhash+0x2f/0x80
tcp_set_state+0x5f/0x180
tcp_done+0x2e/0xe0
tcp_rcv_state_process+0x92c/0xdd3
? lock_acquire+0xf5/0x1f0
? tcp_v4_rcv+0xa7c/0xbe0
? tcp_v4_do_rcv+0x70/0x1e0
Signed-off-by: Atul Gupta <atul.gupta@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Makefile')
0 files changed, 0 insertions, 0 deletions