Messages in this thread Patch in this message |  | | From | Praveen Srinivasan <> | Subject | [PATCH] ftl.c - Null ptr fixes 2.4.4 | Date | Thu, 24 May 2001 00:29:52 -0700 |
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Hi, Using the Stanford checker, we searched for null-pointer bugs in the linux kernel code. This patch fixes an unchecked pointer in an MTD driver (ftl.c).
Praveen Srinivasan and Frederick Akalin
--- ../linux/./drivers/mtd/ftl.c Fri Feb 9 11:30:23 2001 +++ ./drivers/mtd/ftl.c Mon May 7 22:01:29 2001 @@ -375,6 +375,11 @@ /* Set up virtual page map */ blocks = le32_to_cpu(header.FormattedSize) >> header.BlockSize; part->VirtualBlockMap = vmalloc(blocks * sizeof(u_int32_t)); + + if(part->VirtualBlockMap==NULL) { + return -1; + } + memset(part->VirtualBlockMap, 0xff, blocks * sizeof(u_int32_t)); part->BlocksPerUnit = (1 << header.EraseUnitSize) >> header.BlockSize; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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