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| author | Pavel Skripkin <paskripkin@gmail.com> | 2021-12-21 23:10:36 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2021-12-22 14:52:18 -0800 |
| commit | 8035b1a2a37a29d8c717ef84fca8fe7278bc9f03 (patch) | |
| tree | f6f802ef4ad2015a26e0eef1230880987c44f74d /lib/pm-notifier-error-inject.c | |
| parent | 9b8bdd1eb5890aeeab7391dddcf8bd51f7b07216 (diff) | |
| download | lwn-8035b1a2a37a29d8c717ef84fca8fe7278bc9f03.tar.gz lwn-8035b1a2a37a29d8c717ef84fca8fe7278bc9f03.zip | |
asix: fix uninit-value in asix_mdio_read()
asix_read_cmd() may read less than sizeof(smsr) bytes and in this case
smsr will be uninitialized.
Fail log:
BUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline]
BUG: KMSAN: uninit-value in asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497
BUG: KMSAN: uninit-value in asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497
asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline]
asix_check_host_enable drivers/net/usb/asix_common.c:82 [inline] drivers/net/usb/asix_common.c:497
asix_mdio_read+0x3c1/0xb00 drivers/net/usb/asix_common.c:497 drivers/net/usb/asix_common.c:497
Fixes: d9fe64e51114 ("net: asix: Add in_pm parameter")
Reported-and-tested-by: syzbot+f44badb06036334e867a@syzkaller.appspotmail.com
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/8966e3b514edf39857dd93603fc79ec02e000a75.1640117288.git.paskripkin@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'lib/pm-notifier-error-inject.c')
0 files changed, 0 insertions, 0 deletions