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Yuichiro Tsuji 8f141f2a4f net: usb: asix_devices: Fix PHY address mask in MDIO bus initialization 
[ Upstream commit 24ef2f53c0 ]

Syzbot reported shift-out-of-bounds exception on MDIO bus initialization.

The PHY address should be masked to 5 bits (0-31). Without this
mask, invalid PHY addresses could be used, potentially causing issues
with MDIO bus operations.

Fix this by masking the PHY address with 0x1f (31 decimal) to ensure
it stays within the valid range.

Fixes: 4faff70959 ("net: usb: asix_devices: add phy_mask for ax88772 mdio bus")
Reported-by: syzbot+20537064367a0f98d597@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=20537064367a0f98d597
Tested-by: syzbot+20537064367a0f98d597@syzkaller.appspotmail.com
Signed-off-by: Yuichiro Tsuji <yuichtsu@amazon.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250818084541.1958-1-yuichtsu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-08-28 16:26:18 +02:00
arch x86/cpu/hygon: Add missing resctrl_cpu_detect() in bsp_init helper 2025-08-28 16:26:17 +02:00
block block: reject invalid operation in submit_bio_noacct 2025-08-28 16:26:10 +02:00
certs
crypto
Documentation mptcp: disable add_addr retransmission when timeout is 0 2025-08-28 16:26:16 +02:00
drivers net: usb: asix_devices: Fix PHY address mask in MDIO bus initialization 2025-08-28 16:26:18 +02:00
fs f2fs: fix to avoid out-of-boundary access in dnode page 2025-08-28 16:26:15 +02:00
include iosys-map: Fix undefined behavior in iosys_map_clear() 2025-08-28 16:26:17 +02:00
init
io_uring
ipc
kernel cgroup/cpuset: Use static_branch_enable_cpuslocked() on cpusets_insane_config_key 2025-08-28 16:26:17 +02:00
lib
LICENSES
mm mm/memory-failure: fix infinite UCE for VM_PFNMAP pfn 2025-08-28 16:26:16 +02:00
net ipv6: sr: validate HMAC algorithm ID in seg6_hmac_info_add 2025-08-28 16:26:18 +02:00
rust
samples
scripts kconfig: lxdialog: fix 'space' to (de)select options 2025-08-28 16:26:02 +02:00
security
sound ALSA: usb-audio: Fix size validation in convert_chmap_v3() 2025-08-28 16:26:17 +02:00
tools selftests: mptcp: pm: check flush doesn't reset limits 2025-08-28 16:26:16 +02:00
usr
virt
.clang-format
.cocciconfig
.get_maintainer.ignore
.gitattributes
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COPYING
CREDITS
Kbuild
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MAINTAINERS
Makefile kbuild: userprogs: use correct linker when mixing clang and GNU ld 2025-08-28 16:26:13 +02:00
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README 

Linux kernel
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