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| author | Jakub Kicinski <[email protected]> | 2025-02-19 02:33:31 +0000 |
|---|---|---|
| committer | Jakub Kicinski <[email protected]> | 2025-02-19 02:33:32 +0000 |
| commit | a92c3228766429fe175ecc815f895043ea505587 (patch) | |
| tree | 1e47db05f7a5332144f6f601fd7e5c778adb81b6 /net/unix/af_unix.c | |
| parent | net: pse-pd: pd692x0: Fix power limit retrieval (diff) | |
| parent | dev: Use rtnl_net_dev_lock() in unregister_netdev(). (diff) | |
| download | kernel-a92c3228766429fe175ecc815f895043ea505587.tar.gz kernel-a92c3228766429fe175ecc815f895043ea505587.zip | |
Merge branch 'net-fix-race-of-rtnl_net_lock-dev_net-dev'
Kuniyuki Iwashima says:
====================
net: Fix race of rtnl_net_lock(dev_net(dev)).
Yael Chemla reported that commit 7fb1073300a2 ("net: Hold rtnl_net_lock()
in (un)?register_netdevice_notifier_dev_net().") started to trigger KASAN's
use-after-free splat.
The problem is that dev_net(dev) fetched before rtnl_net_lock() might be
different after rtnl_net_lock().
The patch 2 fixes the issue by checking dev_net(dev) after rtnl_net_lock(),
and the patch 3 fixes the same potential issue that would emerge once RTNL
is removed.
v4: https://lore.kernel.org/[email protected]
v3: https://lore.kernel.org/[email protected]
v2: https://lore.kernel.org/[email protected]
v1: https://lore.kernel.org/[email protected]
====================
Link: https://patch.msgid.link/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'net/unix/af_unix.c')
0 files changed, 0 insertions, 0 deletions