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[SRU,N,4/6] scsi: aacraid: struct aac_ciss_phys_luns_resp: Replace 1-element array with flexible array

Message ID 20241002094457.1777904-5-juerg.haefliger@canonical.com
State New
Headers show
Series UBSAN array-index-out-of-bounds reported with N-6.8 on P9 node baltar (LP: #2078038) | expand

Commit Message

Juerg Haefliger Oct. 2, 2024, 9:44 a.m. UTC 
From: Kees Cook <kees@kernel.org>

BugLink: https://bugs.launchpad.net/bugs/2078038

Replace the deprecated[1] use of a 1-element array in struct
aac_ciss_phys_luns_resp with a modern flexible array.

No binary differences are present after this conversion.

Link: https://github.com/KSPP/linux/issues/79 [1]
Signed-off-by: Kees Cook <kees@kernel.org>
Link: https://lore.kernel.org/r/20240711175055.work.928-kees@kernel.org
Reviewed-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
(cherry picked from commit 2e35b43bc9a82fde4e7aebe5d8331e1158374d5c)
Signed-off-by: Juerg Haefliger <juerg.haefliger@canonical.com>
---
 drivers/scsi/aacraid/aachba.c  | 2 +-
 drivers/scsi/aacraid/aacraid.h | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 70e1cac1975e..0053188dd986 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -1833,7 +1833,7 @@  static int aac_get_safw_ciss_luns(struct aac_dev *dev)
 	struct aac_ciss_phys_luns_resp *phys_luns;
 
 	datasize = sizeof(struct aac_ciss_phys_luns_resp) +
-		(AAC_MAX_TARGETS - 1) * sizeof(struct _ciss_lun);
+		AAC_MAX_TARGETS * sizeof(struct _ciss_lun);
 	phys_luns = kmalloc(datasize, GFP_KERNEL);
 	if (phys_luns == NULL)
 		goto out;
diff --git a/drivers/scsi/aacraid/aacraid.h b/drivers/scsi/aacraid/aacraid.h
index 659e393c1033..6f0417f6f8a1 100644
--- a/drivers/scsi/aacraid/aacraid.h
+++ b/drivers/scsi/aacraid/aacraid.h
@@ -322,7 +322,7 @@  struct aac_ciss_phys_luns_resp {
 		u8	level3[2];
 		u8	level2[2];
 		u8	node_ident[16];	/* phys. node identifier */
-	} lun[1];			/* List of phys. devices */
+	} lun[];			/* List of phys. devices */
 };
 
 /*