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Issue of the Implementation # L0013

Brief

drivers/ata/sata_mv.c: Null dereference

Detailed Description

Null dereference in driver drivers/ata/ata_mv.c in function mv_port_intr: Path:

Line 2778: suppose that ap == null, in this case we goto 2779

Line 2779: call function mv_unexpected_intr

Line 2538 (function mv_unexpected_intr): null dereference of "&ap->link.eh_info"

2773 static void mv_port_intr(struct ata_port *ap, u32 port_cause)
2774 {
...
2778         if (!ap || (ap->flags & ATA_FLAG_DISABLED)) {
2779                 mv_unexpected_intr(ap, 0);
2780                 return;
2781         }
...
2809 }

2536 static void mv_unexpected_intr(struct ata_port *ap, int edma_was_enabled)
2537 {
2538         struct ata_eh_info *ehi = ;
...
2555 }

Component

linux-kernel 2.6.32

Accepted

http://lkml.org/lkml/2009/12/14/237
commit

Status

Fixed in kernel 2.6.33

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