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* [PATCH AUTOSEL 4.19 01/21] drm/radeon/r600_cs: Fix possible int overflow in r600_packet3_check()
@ 2024-11-24 13:56 Sasha Levin
  2024-11-24 13:56 ` [PATCH AUTOSEL 4.19 02/21] samples/bpf: Fix a resource leak Sasha Levin
                   ` (19 more replies)
  0 siblings, 20 replies; 22+ messages in thread
From: Sasha Levin @ 2024-11-24 13:56 UTC (permalink / raw)
  To: linux-kernel, stable
  Cc: Igor Artemiev, Alex Deucher, Sasha Levin, christian.koenig,
	Xinhui.Pan, airlied, simona, amd-gfx, dri-devel

From: Igor Artemiev <Igor.A.Artemiev@mcst.ru>

[ Upstream commit a1e2da6a5072f8abe5b0feaa91a5bcd9dc544a04 ]

It is possible, although unlikely, that an integer overflow will occur
when the result of radeon_get_ib_value() is shifted to the left.

Avoid it by casting one of the operands to larger data type (u64).

Found by Linux Verification Center (linuxtesting.org) with static
analysis tool SVACE.

Signed-off-by: Igor Artemiev <Igor.A.Artemiev@mcst.ru>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/radeon/r600_cs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c
index b6bdfb3f4a7f7..580ca4f753531 100644
--- a/drivers/gpu/drm/radeon/r600_cs.c
+++ b/drivers/gpu/drm/radeon/r600_cs.c
@@ -2104,7 +2104,7 @@ static int r600_packet3_check(struct radeon_cs_parser *p,
 				return -EINVAL;
 			}
 
-			offset = radeon_get_ib_value(p, idx+1) << 8;
+			offset = (u64)radeon_get_ib_value(p, idx+1) << 8;
 			if (offset != track->vgt_strmout_bo_offset[idx_value]) {
 				DRM_ERROR("bad STRMOUT_BASE_UPDATE, bo offset does not match: 0x%llx, 0x%x\n",
 					  offset, track->vgt_strmout_bo_offset[idx_value]);
-- 
2.43.0


^ permalink raw reply related	[flat|nested] 22+ messages in thread

end of thread, other threads:[~2024-12-02 12:12 UTC | newest]

Thread overview: 22+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2024-11-24 13:56 [PATCH AUTOSEL 4.19 01/21] drm/radeon/r600_cs: Fix possible int overflow in r600_packet3_check() Sasha Levin
2024-11-24 13:56 ` [PATCH AUTOSEL 4.19 02/21] samples/bpf: Fix a resource leak Sasha Levin
2024-12-02 12:12   ` Pavel Machek
2024-11-24 13:56 ` [PATCH AUTOSEL 4.19 03/21] net: fec_mpc52xx_phy: Use %pa to format resource_size_t Sasha Levin
2024-11-24 13:56 ` [PATCH AUTOSEL 4.19 04/21] net: ethernet: fs_enet: " Sasha Levin
2024-11-24 13:56 ` [PATCH AUTOSEL 4.19 05/21] af_packet: avoid erroring out after sock_init_data() in packet_create() Sasha Levin
2024-11-24 13:56 ` [PATCH AUTOSEL 4.19 06/21] Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() Sasha Levin
2024-11-24 13:56 ` [PATCH AUTOSEL 4.19 07/21] net: af_can: do not leave a dangling sk pointer in can_create() Sasha Levin
2024-11-24 13:56 ` [PATCH AUTOSEL 4.19 08/21] net: ieee802154: do not leave a dangling sk pointer in ieee802154_create() Sasha Levin
2024-11-24 13:56 ` [PATCH AUTOSEL 4.19 09/21] net: inet: do not leave a dangling sk pointer in inet_create() Sasha Levin
2024-11-24 13:56 ` [PATCH AUTOSEL 4.19 10/21] net: inet6: do not leave a dangling sk pointer in inet6_create() Sasha Levin
2024-11-24 13:56 ` [PATCH AUTOSEL 4.19 11/21] wifi: ath5k: add PCI ID for SX76X Sasha Levin
2024-11-24 13:56 ` [PATCH AUTOSEL 4.19 12/21] wifi: ath5k: add PCI ID for Arcadyan devices Sasha Levin
2024-11-24 13:56 ` [PATCH AUTOSEL 4.19 13/21] jfs: array-index-out-of-bounds fix in dtReadFirst Sasha Levin
2024-11-24 13:56 ` [PATCH AUTOSEL 4.19 14/21] jfs: fix shift-out-of-bounds in dbSplit Sasha Levin
2024-11-24 13:56 ` [PATCH AUTOSEL 4.19 15/21] jfs: fix array-index-out-of-bounds in jfs_readdir Sasha Levin
2024-11-24 13:56 ` [PATCH AUTOSEL 4.19 16/21] jfs: add a check to prevent array-index-out-of-bounds in dbAdjTree Sasha Levin
2024-11-24 13:56 ` [PATCH AUTOSEL 4.19 17/21] wifi: ipw2x00: libipw_rx_any(): fix bad alignment Sasha Levin
2024-11-24 13:56 ` [PATCH AUTOSEL 4.19 18/21] wifi: brcmfmac: Fix oops due to NULL pointer dereference in brcmf_sdiod_sglist_rw() Sasha Levin
2024-11-24 13:56 ` [PATCH AUTOSEL 4.19 19/21] ASoC: hdmi-codec: reorder channel allocation list Sasha Levin
2024-11-24 13:56 ` [PATCH AUTOSEL 4.19 20/21] rocker: fix link status detection in rocker_carrier_init() Sasha Levin
2024-11-24 13:56 ` [PATCH AUTOSEL 4.19 21/21] netpoll: Use rcu_access_pointer() in __netpoll_setup Sasha Levin

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