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test/libc: fix cachestat() test on recent Linux kernels.

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On Linux kernels which contain the fix for CVE-2025-21691, i.e.
5f537664e705b0bf8b7e329861f20128534f6a83 or its backports such as
780ab8329672464984cf1344bd5c3993af0226c7 , cachestat() requires
that the file is writable or owned.
Use /proc/self/comm instead of /proc/version and /proc.

Signed-off-by: Lionel Debroux <lionel_debroux@yahoo.fr>
This commit is contained in:
Lionel Debroux 2025-05-04 20:52:53 +02:00
parent 4ca513cba2
commit be1679e5ed
1 changed files with 1 additions and 1 deletions
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2
test/libc/calls/cachestat_test.c
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@ -53,7 +53,7 @@ void SetUpOnce(void) {
TEST(cachestat, testCachestatOnDevices) {
const char *const files[] = {
"/dev/zero", "/dev/null", "/dev/urandom", "/proc/version", "/proc",
"/dev/zero", "/dev/null", "/dev/urandom", "/proc/self/comm",
};
struct cachestat_range range = {0, 4 * pagesize};
struct cachestat cs;