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| author |   Ben Hutchings <benh@debian.org> | 2025-08-17 16:21:46 +0200 |
|---|---|---|
| committer |   Masami Hiramatsu (Google) <mhiramat@kernel.org> | 2025-08-21 08:16:31 +0900 |
| commit | 729dc340a4ed1267774fc8518284e976e2210bdc (patch) | |
| tree | c49ed5434ea386fae1005ebc94724ebfc0537db0 /tools/perf/scripts/python | |
| parent | Linux 6.17-rc2 (diff) | |
| download | wireguard-linux-729dc340a4ed1267774fc8518284e976e2210bdc.tar.xz wireguard-linux-729dc340a4ed1267774fc8518284e976e2210bdc.zip | |
bootconfig: Fix negative seeks on 32-bit with LFS enabled
Commit 26dda5769509 "tools/bootconfig: Cleanup bootconfig footer size
calculations" replaced some expressions of type int with the
BOOTCONFIG_FOOTER_SIZE macro, which expands to an expression of type
size_t, which is unsigned.
On 32-bit architectures with LFS enabled (i.e. off_t is 64-bit), the
seek offset of -BOOTCONFIG_FOOTER_SIZE now turns into a positive
value.
Fix this by casting the size to off_t before negating it.
Just in case someone changes BOOTCONFIG_MAGIC_LEN to have type size_t
later, do the same thing to the seek offset of -BOOTCONFIG_MAGIC_LEN.
Link: https://lore.kernel.org/all/aKHlevxeg6Y7UQrz@decadent.org.uk/
Fixes: 26dda5769509 ("tools/bootconfig: Cleanup bootconfig footer size calculations")
Signed-off-by: Ben Hutchings <benh@debian.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions