Patch "perf record: Fix possible incorrect free in record__switch_output()" has been added to the 6.6-stable tree

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



This is a note to let you know that I've just added the patch titled

    perf record: Fix possible incorrect free in record__switch_output()

to the 6.6-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:
     perf-record-fix-possible-incorrect-free-in-record__s.patch
and it can be found in the queue-6.6 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit b3e6b568b1c4fed82d87cf0051306a3f99f84138
Author: Yang Jihong <yangjihong1@xxxxxxxxxx>
Date:   Fri Jan 19 04:03:02 2024 +0000

    perf record: Fix possible incorrect free in record__switch_output()
    
    [ Upstream commit aff10a165201f6f60cff225083ce301ad3f5d8f1 ]
    
    perf_data__switch() may not assign a legal value to 'new_filename'.
    In this case, 'new_filename' uses the on-stack value, which may cause a
    incorrect free and unexpected result.
    
    Fixes: 03724b2e9c45 ("perf record: Allow to limit number of reported perf.data files")
    Signed-off-by: Yang Jihong <yangjihong1@xxxxxxxxxx>
    Acked-by: Namhyung Kim <namhyung@xxxxxxxxxx>
    Link: https://lore.kernel.org/r/20240119040304.3708522-2-yangjihong1@xxxxxxxxxx
    Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 34bb31f08bb52..cd1725643ef77 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -1786,8 +1786,8 @@ static int
 record__switch_output(struct record *rec, bool at_exit)
 {
 	struct perf_data *data = &rec->data;
+	char *new_filename = NULL;
 	int fd, err;
-	char *new_filename;
 
 	/* Same Size:      "2015122520103046"*/
 	char timestamp[] = "InvalidTimestamp";




[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux