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linux-yocto/net/ethtool
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Damodharam Ammepalli 61765e1b41 ethtool: cmis_cdb: use correct rpl size in ethtool_cmis_module_poll() 
[ Upstream commit f3fdd4fba1 ]

rpl is passed as a pointer to ethtool_cmis_module_poll(), so the correct
size of rpl is sizeof(*rpl) which should be just 1 byte.  Using the
pointer size instead can cause stack corruption:

Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ethtool_cmis_wait_for_cond+0xf4/0x100
CPU: 72 UID: 0 PID: 4440 Comm: kworker/72:2 Kdump: loaded Tainted: G           OE      6.11.0 #24
Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
Hardware name: Dell Inc. PowerEdge R760/04GWWM, BIOS 1.6.6 09/20/2023
Workqueue: events module_flash_fw_work
Call Trace:
 <TASK>
 panic+0x339/0x360
 ? ethtool_cmis_wait_for_cond+0xf4/0x100
 ? __pfx_status_success+0x10/0x10
 ? __pfx_status_fail+0x10/0x10
 __stack_chk_fail+0x10/0x10
 ethtool_cmis_wait_for_cond+0xf4/0x100
 ethtool_cmis_cdb_execute_cmd+0x1fc/0x330
 ? __pfx_status_fail+0x10/0x10
 cmis_cdb_module_features_get+0x6d/0xd0
 ethtool_cmis_cdb_init+0x8a/0xd0
 ethtool_cmis_fw_update+0x46/0x1d0
 module_flash_fw_work+0x17/0xa0
 process_one_work+0x179/0x390
 worker_thread+0x239/0x340
 ? __pfx_worker_thread+0x10/0x10
 kthread+0xcc/0x100
 ? __pfx_kthread+0x10/0x10
 ret_from_fork+0x2d/0x50
 ? __pfx_kthread+0x10/0x10
 ret_from_fork_asm+0x1a/0x30
 </TASK>

Fixes: a39c84d796 ("ethtool: cmis_cdb: Add a layer for supporting CDB commands")
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Damodharam Ammepalli <damodharam.ammepalli@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20250409173312.733012-1-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-04-25 10:47:43 +02:00
..
bitset.c ethtool: Fix wrong mod state in case of verbose and no_mask bitset 2024-12-14 20:03:08 +01:00
bitset.h
cabletest.c net: ethtool: netlink: Allow NULL nlattrs when getting a phy_device 2025-03-13 13:02:08 +01:00
channels.c ethtool: refactor checking max channels 2024-08-09 21:52:13 -07:00
cmis_cdb.c ethtool: cmis_cdb: use correct rpl size in ethtool_cmis_module_poll() 2025-04-25 10:47:43 +02:00
cmis_fw_update.c net: ethtool: Allow write mechanism of LPL and both LPL and EPL 2024-08-15 12:20:14 +02:00
cmis.h ethtool: cmis_cdb: Remove unused declaration ethtool_cmis_page_fini() 2024-08-06 12:16:58 -07:00
coalesce.c
common.c netdev: support binding dma-buf to netdevice 2024-09-11 20:44:31 -07:00
common.h ethtool: refactor checking max channels 2024-08-09 21:52:13 -07:00
debug.c
eee.c
eeprom.c
features.c
fec.c
ioctl.c ethtool: ntuple: fix rss + ring_cookie check 2025-02-08 09:58:19 +01:00
linkinfo.c ethtool: Don't check for NULL info in prepare_data callbacks 2024-08-01 09:03:52 -07:00
linkmodes.c ethtool: Don't check for NULL info in prepare_data callbacks 2024-08-01 09:03:52 -07:00
linkstate.c net: ethtool: netlink: Allow NULL nlattrs when getting a phy_device 2025-03-13 13:02:08 +01:00
Makefile net: ethtool: Introduce a command to list PHYs on an interface 2024-08-23 13:04:34 +01:00
mm.c
module_fw.h
module.c
netlink.c net: ethtool: Don't call .cleanup_data when prepare_data fails 2025-04-20 10:15:07 +02:00
netlink.h net: ethtool: netlink: Allow NULL nlattrs when getting a phy_device 2025-03-13 13:02:08 +01:00
pause.c
phc_vclocks.c
phy.c net: ethtool: netlink: Allow NULL nlattrs when getting a phy_device 2025-03-13 13:02:08 +01:00
plca.c net: ethtool: netlink: Allow NULL nlattrs when getting a phy_device 2025-03-13 13:02:08 +01:00
privflags.c
pse-pd.c net: ethtool: netlink: Allow NULL nlattrs when getting a phy_device 2025-03-13 13:02:08 +01:00
rings.c
rss.c ethtool: rss: fix hiding unsupported fields in dumps 2025-02-17 10:05:00 +01:00
stats.c net: ethtool: netlink: Allow NULL nlattrs when getting a phy_device 2025-03-13 13:02:08 +01:00
strset.c net: ethtool: netlink: Allow NULL nlattrs when getting a phy_device 2025-03-13 13:02:08 +01:00
tsinfo.c
tunnels.c
wol.c