test/libc: fix cachestat() test on recent Linux kernels. #1411
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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>
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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.