diff options
| author | Ben Hutchings <ben@decadent.org.uk> | 2023-03-22 21:11:45 +0300 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2023-03-23 09:28:41 +0300 |
| commit | fb27e70f6e408dee5d22b083e7a38a59e6118253 (patch) | |
| tree | 6c95885eb53dc1619ff2748d5820146af4fd0831 /scripts/mod | |
| parent | 1073c15fd39e804ad36ff26a7c7d53b0ab51b184 (diff) | |
| download | linux-fb27e70f6e408dee5d22b083e7a38a59e6118253.tar.xz | |
modpost: Fix processing of CRCs on 32-bit build machines
modpost now reads CRCs from .*.cmd files, parsing them using strtol().
This is inconsistent with its parsing of Module.symvers and with their
definition as *unsigned* 32-bit values.
strtol() clamps values to [LONG_MIN, LONG_MAX], and when building on a
32-bit system this changes all CRCs >= 0x80000000 to be 0x7fffffff.
Change extract_crcs_for_object() to use strtoul() instead.
Cc: stable@vger.kernel.org
Fixes: f292d875d0dc ("modpost: extract symbol versions from *.cmd files")
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Diffstat (limited to 'scripts/mod')
| -rw-r--r-- | scripts/mod/modpost.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c index efff8078e395..9466b6a2abae 100644 --- a/scripts/mod/modpost.c +++ b/scripts/mod/modpost.c @@ -1733,7 +1733,7 @@ static void extract_crcs_for_object(const char *object, struct module *mod) if (!isdigit(*p)) continue; /* skip this line */ - crc = strtol(p, &p, 0); + crc = strtoul(p, &p, 0); if (*p != '\n') continue; /* skip this line */ |