From: Darsh Kelaiya <[email protected]> This patch applies the upstream fix as referenced in [2], using the commit shown in [1].
[1] https://cgit.git.savannah.gnu.org/cgit/gawk.git/commit/?id=a2d18c74109e41bec29a23098eba2e00057286d8 [2] https://nvd.nist.gov/vuln/detail/CVE-2026-40467 Signed-off-by: Darsh Kelaiya <[email protected]> --- .../gawk/gawk/CVE-2026-40467.patch | 62 +++++++++++++++++++ meta/recipes-extended/gawk/gawk_5.4.0.bb | 1 + 2 files changed, 63 insertions(+) create mode 100644 meta/recipes-extended/gawk/gawk/CVE-2026-40467.patch diff --git a/meta/recipes-extended/gawk/gawk/CVE-2026-40467.patch b/meta/recipes-extended/gawk/gawk/CVE-2026-40467.patch new file mode 100644 index 0000000000..772172c373 --- /dev/null +++ b/meta/recipes-extended/gawk/gawk/CVE-2026-40467.patch @@ -0,0 +1,62 @@ +From 194a2884f21a6fc02c446ca4e2dc9107298832db Mon Sep 17 00:00:00 2001 +From: "Arnold D. Robbins" <[email protected]> +Date: Fri, 3 Apr 2026 12:02:11 +0300 +Subject: [PATCH] Small memory management fix in io.c. + +CVE: CVE-2026-40467 +Upstream-Status: Backport [https://cgit.git.savannah.gnu.org/cgit/gawk.git/commit/?id=a2d18c74109e41bec29a23098eba2e00057286d8] + +(cherry picked from commit a2d18c74109e41bec29a23098eba2e00057286d8) +Signed-off-by: Darsh Kelaiya <[email protected]> +--- + ChangeLog | 6 ++++++ + io.c | 5 ++++- + 2 files changed, 10 insertions(+), 1 deletion(-) + +diff --git a/ChangeLog b/ChangeLog +index a714ca1a..517aba91 100644 +--- a/ChangeLog ++++ b/ChangeLog +@@ -1,3 +1,9 @@ ++2026-04-03 Arnold D. Robbins <[email protected]> ++ ++ * io.c (do_getline_redir): Don't DEREF redir_exp too early. ++ Thanks to Michał Majchrowicz <[email protected]> ++ for the report. ++ + 2026-02-22 Arnold D. Robbins <[email protected]> + + * 5.4.0: Release tar ball made. +diff --git a/io.c b/io.c +index a3b877c4..7a547aa1 100644 +--- a/io.c ++++ b/io.c +@@ -2853,21 +2853,24 @@ do_getline_redir(int into_variable, enum redirval redirtype) + redir_exp = TOP(); + redir_exp = elem_new_to_scalar(redir_exp); + rp = redirect(redir_exp, redirtype, & redir_error, false); +- DEREF(redir_exp); + decr_sp(); + if (rp == NULL) { + if (redir_error) { /* failed redirect */ + update_ERRNO_int(redir_error); + } ++ DEREF(redir_exp); + return make_number((AWKNUM) -1.0); + } else if ((rp->flag & RED_TWOWAY) != 0 && rp->iop == NULL) { + if (is_non_fatal_redirect(redir_exp->stptr, redir_exp->stlen)) { + update_ERRNO_int(EBADF); ++ DEREF(redir_exp); + return make_number((AWKNUM) -1.0); + } + (void) close_rp(rp, CLOSE_ALL); ++ DEREF(redir_exp); // we're about to die, but what the heck, release it anyway + fatal(_("getline: attempt to read from closed read end of two-way pipe")); + } ++ DEREF(redir_exp); + iop = rp->iop; + if (iop == NULL) /* end of input */ + return make_number((AWKNUM) 0.0); +-- +2.53.0 + diff --git a/meta/recipes-extended/gawk/gawk_5.4.0.bb b/meta/recipes-extended/gawk/gawk_5.4.0.bb index d7211f28f3..59c4cb2536 100644 --- a/meta/recipes-extended/gawk/gawk_5.4.0.bb +++ b/meta/recipes-extended/gawk/gawk_5.4.0.bb @@ -28,6 +28,7 @@ PACKAGECONFIG[pma-if-64bit] = "--enable-pma,--disable-pma, " SRC_URI = "${GNU_MIRROR}/gawk/gawk-${PV}.tar.xz \ file://run-ptest \ file://0001-configure.ac-re-enable-disabled-printf-features.patch \ + file://CVE-2026-40467.patch \ " SRC_URI[sha256sum] = "3dd430f0cd3b4428c6c3f6afc021b9cd3c1f8c93f7a688dc268ca428a90b4ac1" -- 2.35.6
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