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| author | Kyle McMartin <kyle@parisc-linux.org> | 2007-05-30 02:24:28 -0400 |
|---|---|---|
| committer | Kyle McMartin <kyle@minerva.i.cabal.ca> | 2007-05-30 02:24:28 -0400 |
| commit | cb9577958d85896303561d9cc8544885deb272be (patch) | |
| tree | a8232600edf17cf4020a121ef4bb7735257e0f0e /arch/parisc | |
| parent | 516a9491151d5f75911647dd44812f25ff24282d (diff) | |
| download | linux-stable-cb9577958d85896303561d9cc8544885deb272be.tar.gz linux-stable-cb9577958d85896303561d9cc8544885deb272be.tar.bz2 linux-stable-cb9577958d85896303561d9cc8544885deb272be.zip | |
[PARISC] fix null ptr deref in unwind.c
commit ffb45122766db220d0bf3d01848d575fbbcb6430 removed one too many args.
kallsyms_lookup is not safe to call with a NULL *modname. Paper bag over the
problem for the time being.
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Diffstat (limited to 'arch/parisc')
| -rw-r--r-- | arch/parisc/kernel/unwind.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/parisc/kernel/unwind.c b/arch/parisc/kernel/unwind.c index 89c03707eccc..e70f57e27643 100644 --- a/arch/parisc/kernel/unwind.c +++ b/arch/parisc/kernel/unwind.c @@ -216,8 +216,10 @@ static void unwind_frame_regs(struct unwind_frame_info *info) /* Handle some frequent special cases.... */ { char symname[KSYM_NAME_LEN+1]; + char *modname; - kallsyms_lookup(info->ip, NULL, NULL, NULL, symname); + kallsyms_lookup(info->ip, NULL, NULL, &modname, + symname); dbg("info->ip = 0x%lx, name = %s\n", info->ip, symname); |