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| author | Thomas Weißschuh <thomas@t-8ch.de> | 2024-01-20 22:45:24 +0100 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2024-01-23 13:23:47 +1000 |
| commit | 3805d4287fd64917a20bdc406b52d37800d46659 (patch) | |
| tree | dd51cf33d0a5cd8f284b925478e7a3d8348430f5 | |
| parent | 1b21fe27e75a59bfe2513f5abcc6a18cfc35cfc8 (diff) | |
| download | qemu-3805d4287fd64917a20bdc406b52d37800d46659.zip qemu-3805d4287fd64917a20bdc406b52d37800d46659.tar.gz qemu-3805d4287fd64917a20bdc406b52d37800d46659.tar.bz2 | |
linux-user/elfload: test return value of getrlimit
Should getrlimit() fail the value of dumpsize.rlimit_cur may not be
initialized. Avoid reading garbage data by checking the return value of
getrlimit.
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
Message-Id: <20240120-qemu-user-dumpable-v3-1-6aa410c933f1@t-8ch.de>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
| -rw-r--r-- | linux-user/elfload.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/linux-user/elfload.c b/linux-user/elfload.c index cf9e744..c596871 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -4667,9 +4667,9 @@ static int elf_core_dump(int signr, const CPUArchState *env) init_note_info(&info); errno = 0; - getrlimit(RLIMIT_CORE, &dumpsize); - if (dumpsize.rlim_cur == 0) + if (getrlimit(RLIMIT_CORE, &dumpsize) == 0 && dumpsize.rlim_cur == 0) { return 0; + } corefile = core_dump_filename(ts); |