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posix: Fix double-free after allocation failure in regcomp (bug 33185) release/2.33/master
authorFlorian Weimer <fweimer@redhat.com>
Mon, 21 Jul 2025 19:43:49 +0000 (21:43 +0200)
committerFlorian Weimer <fweimer@redhat.com>
Thu, 24 Jul 2025 10:11:24 +0000 (12:11 +0200)
commit1ec499b16573ed84223c5ec93964734b8c078555
tree471f24b6db804187f82621be2688bcb6ad8a8679tree
parent5f08d1df2c07904c1dc98bdf2b363c65874266f7commit | diff
posix: Fix double-free after allocation failure in regcomp (bug 33185)

If a memory allocation failure occurs during bracket expression
parsing in regcomp, a double-free error may result.

Reported-by: Anastasia Belova <abelova@astralinux.ru>
Co-authored-by: Paul Eggert <eggert@cs.ucla.edu>
Reviewed-by: Andreas K. Huettel <dilfridge@gentoo.org>
(cherry picked from commit 7ea06e994093fa0bcca0d0ee2c1db271d8d7885d)
NEWS diff | blob | blame | history
posix/Makefile diff | blob | blame | history
posix/regcomp.c diff | blob | blame | history
posix/tst-regcomp-bracket-free.c [new file with mode: 0644] blob
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