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| author | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2022-01-13 11:28:36 +0530 |
|---|---|---|
| committer | Siddhesh Poyarekar <siddhesh@sourceware.org> | 2022-01-19 09:49:29 +0530 |
| commit | c9c20ec3b0e9831c1d0c47c9c51330c3e1685eae (patch) | |
| tree | 10bc9c8caa11228d186cab2ccbde53f1b018fa81 /po | |
| parent | cf6b5f97eced238fe7697f3414bb17352a4f2cf5 (diff) | |
| download | glibc-c9c20ec3b0e9831c1d0c47c9c51330c3e1685eae.zip glibc-c9c20ec3b0e9831c1d0c47c9c51330c3e1685eae.tar.gz glibc-c9c20ec3b0e9831c1d0c47c9c51330c3e1685eae.tar.bz2 | |
realpath: Set errno to ENAMETOOLONG for result larger than PATH_MAX [BZ #28770]
realpath returns an allocated string when the result exceeds PATH_MAX,
which is unexpected when its second argument is not NULL. This results
in the second argument (resolved) being uninitialized and also results
in a memory leak since the caller expects resolved to be the same as the
returned value.
Return NULL and set errno to ENAMETOOLONG if the result exceeds
PATH_MAX. This fixes [BZ #28770], which is CVE-2021-3998.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Signed-off-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Diffstat (limited to 'po')
0 files changed, 0 insertions, 0 deletions