Re: [PATCH] net: usb: lan78xx: Fix lost EEPROM read timeout error(-ETIMEDOUT) in lan78xx_read_raw_eeprom

From
patchwork-bot+netdevbpf@kernel.org
Date
2025-10-03 18:00:22
Also in
linux-usb, lkml
Reply to
Bhanu Seshu Kumar Valluri, 2025-09-30
Hello:

This patch was applied to netdev/net.git (main)
by Jakub Kicinski [off-list ref]:

On Tue, 30 Sep 2025 14:19:02 +0530 you wrote:
Syzbot reported read of uninitialized variable BUG with following call stack.

lan78xx 8-1:1.0 (unnamed net_device) (uninitialized): EEPROM read operation timeout
=====================================================
BUG: KMSAN: uninit-value in lan78xx_read_eeprom drivers/net/usb/lan78xx.c:1095 [inline]
BUG: KMSAN: uninit-value in lan78xx_init_mac_address drivers/net/usb/lan78xx.c:1937 [inline]
BUG: KMSAN: uninit-value in lan78xx_reset+0x999/0x2cd0 drivers/net/usb/lan78xx.c:3241
 lan78xx_read_eeprom drivers/net/usb/lan78xx.c:1095 [inline]
 lan78xx_init_mac_address drivers/net/usb/lan78xx.c:1937 [inline]
 lan78xx_reset+0x999/0x2cd0 drivers/net/usb/lan78xx.c:3241
 lan78xx_bind+0x711/0x1690 drivers/net/usb/lan78xx.c:3766
 lan78xx_probe+0x225c/0x3310 drivers/net/usb/lan78xx.c:4707

[...]
Here is the summary with links:
  - net: usb: lan78xx: Fix lost EEPROM read timeout error(-ETIMEDOUT) in lan78xx_read_raw_eeprom
    https://git.kernel.org/netdev/net/c/49bdb63ff644

You are awesome, thank you!
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Thread (11 messages) 11 messages, 4 authors, last reply 2025-10-03
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