diff options
| author | Paulo Alcantara <pc@cjr.nz> | 2020-11-28 16:54:02 -0300 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2020-11-30 15:23:45 -0600 |
| commit | 212253367dc7b49ed3fc194ce71b0992eacaecf2 (patch) | |
| tree | f70fc65d0b8eda01cf1c7d37b2bf212840cd4096 /net/tls/tls_device.c | |
| parent | 6988a619f5b79e4efadea6e19dcfe75fbcd350b5 (diff) | |
cifs: fix potential use-after-free in cifs_echo_request()
This patch fixes a potential use-after-free bug in
cifs_echo_request().
For instance,
thread 1
--------
cifs_demultiplex_thread()
clean_demultiplex_info()
kfree(server)
thread 2 (workqueue)
--------
apic_timer_interrupt()
smp_apic_timer_interrupt()
irq_exit()
__do_softirq()
run_timer_softirq()
call_timer_fn()
cifs_echo_request() <- use-after-free in server ptr
Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
CC: Stable <stable@vger.kernel.org>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'net/tls/tls_device.c')
0 files changed, 0 insertions, 0 deletions