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| author | Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> | 2019-07-04 20:04:42 +0530 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2019-08-30 16:49:07 -0400 |
| commit | 5b0022dd32b7c2e15edf1827ba80aa1407edf9ff (patch) | |
| tree | b7e6fca3afb0ed19eaa69acb4115f62b41913f82 /kernel/trace/trace_events.c | |
| parent | 372e0d01da71c84dcecf7028598a33813b0d5256 (diff) | |
| download | linux-5b0022dd32b7c2e15edf1827ba80aa1407edf9ff.tar.gz linux-5b0022dd32b7c2e15edf1827ba80aa1407edf9ff.tar.bz2 linux-5b0022dd32b7c2e15edf1827ba80aa1407edf9ff.zip | |
ftrace: Check for successful allocation of hash
In register_ftrace_function_probe(), we are not checking the return
value of alloc_and_copy_ftrace_hash(). The subsequent call to
ftrace_match_records() may end up dereferencing the same. Add a check to
ensure this doesn't happen.
Link: http://lkml.kernel.org/r/26e92574f25ad23e7cafa3cf5f7a819de1832cbe.1562249521.git.naveen.n.rao@linux.vnet.ibm.com
Cc: stable@vger.kernel.org
Fixes: 1ec3a81a0cf42 ("ftrace: Have each function probe use its own ftrace_ops")
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_events.c')
0 files changed, 0 insertions, 0 deletions