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[PATCH] powerpc: check Cell SPU syscall number range _before_ using it

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Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Paul Mackerras <paulus@samba.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
David Woodhouse 2006-05-23 07:46:39 -07:00 committed by Linus Torvalds
parent 5a4fa16396
commit b471f55427
1 changed files with 2 additions and 2 deletions
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4
arch/powerpc/platforms/cell/spu_callbacks.c
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@ -339,13 +339,13 @@ long spu_sys_callback(struct spu_syscall_block *s)
{ {
long (*syscall)(u64 a1, u64 a2, u64 a3, u64 a4, u64 a5, u64 a6); long (*syscall)(u64 a1, u64 a2, u64 a3, u64 a4, u64 a5, u64 a6);
syscall = spu_syscall_table[s->nr_ret];
if (s->nr_ret >= ARRAY_SIZE(spu_syscall_table)) { if (s->nr_ret >= ARRAY_SIZE(spu_syscall_table)) {
pr_debug("%s: invalid syscall #%ld", __FUNCTION__, s->nr_ret); pr_debug("%s: invalid syscall #%ld", __FUNCTION__, s->nr_ret);
return -ENOSYS; return -ENOSYS;
} }
syscall = spu_syscall_table[s->nr_ret];
#ifdef DEBUG #ifdef DEBUG
print_symbol(KERN_DEBUG "SPU-syscall %s:", (unsigned long)syscall); print_symbol(KERN_DEBUG "SPU-syscall %s:", (unsigned long)syscall);
printk("syscall%ld(%lx, %lx, %lx, %lx, %lx, %lx)\n", printk("syscall%ld(%lx, %lx, %lx, %lx, %lx, %lx)\n",