This is a note to let you know that I've just added the patch titled IB/srpt: Do not accept invalid initiator port names to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: ib-srpt-do-not-accept-invalid-initiator-port-names.patch and it can be found in the queue-4.4 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From c70ca38960399a63d5c048b7b700612ea321d17e Mon Sep 17 00:00:00 2001 From: Bart Van Assche <bart.vanassche@xxxxxxx> Date: Wed, 11 Oct 2017 10:27:22 -0700 Subject: IB/srpt: Do not accept invalid initiator port names From: Bart Van Assche <bart.vanassche@xxxxxxx> commit c70ca38960399a63d5c048b7b700612ea321d17e upstream. Make srpt_parse_i_port_id() return a negative value if hex2bin() fails. Fixes: commit a42d985bd5b2 ("ib_srpt: Initial SRP Target merge for v3.3-rc1") Signed-off-by: Bart Van Assche <bart.vanassche@xxxxxxx> Signed-off-by: Doug Ledford <dledford@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/infiniband/ulp/srpt/ib_srpt.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) --- a/drivers/infiniband/ulp/srpt/ib_srpt.c +++ b/drivers/infiniband/ulp/srpt/ib_srpt.c @@ -3425,7 +3425,7 @@ static int srpt_parse_i_port_id(u8 i_por { const char *p; unsigned len, count, leading_zero_bytes; - int ret, rc; + int ret; p = name; if (strncasecmp(p, "0x", 2) == 0) @@ -3437,10 +3437,9 @@ static int srpt_parse_i_port_id(u8 i_por count = min(len / 2, 16U); leading_zero_bytes = 16 - count; memset(i_port_id, 0, leading_zero_bytes); - rc = hex2bin(i_port_id + leading_zero_bytes, p, count); - if (rc < 0) - pr_debug("hex2bin failed for srpt_parse_i_port_id: %d\n", rc); - ret = 0; + ret = hex2bin(i_port_id + leading_zero_bytes, p, count); + if (ret < 0) + pr_debug("hex2bin failed for srpt_parse_i_port_id: %d\n", ret); out: return ret; } Patches currently in stable-queue which might be from bart.vanassche@xxxxxxx are queue-4.4/ib-srp-avoid-that-a-cable-pull-can-trigger-a-kernel-crash.patch queue-4.4/ib-srpt-do-not-accept-invalid-initiator-port-names.patch