diff options
| author | Aswin Karuvally <aswin@linux.ibm.com> | 2026-08-27 08:34:08 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-09-01 16:55:04 -0700 |
| commit | b264d8422779d69febce914efc47a92a85cc382c (patch) | |
| tree | 0b9193a691ddf1ee83a0d6ce612a7b7bb46e9ba1 /tools/perf/scripts/python/bin/stackcollapse-record | |
| parent | 1d2929d0850fff683b8aff051275945e65f082c8 (diff) | |
s390/ctcm: Prevent XID null dereference
The mpc_validate_xid() function sets grp->saved_xid2->xid2_flag2 to 0x40
to signal XID validation error. If peer XID is NULL or r/w channel
pairing mismatch happens, grp->saved_xid2 is never initialized. An
attempt to set the flag in such case leads to NULL dereference.
Fix this by using the always available priv->xid->xid2_flag2 instead of
grp->saved_xid2->xid2_flag2 for validation errors.
Fixes: 293d984f0e36 ("ctcm: infrastructure for replaced ctc driver")
Cc: stable@vger.kernel.org
Signed-off-by: Aswin Karuvally <aswin@linux.ibm.com>
Link: https://patch.msgid.link/20260827063408.2168914-1-aswin@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-record')
0 files changed, 0 insertions, 0 deletions