Re: [syzbot] [bridge?] KMSAN: uninit-value in netif_skb_features (4)

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syzbot

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Mar 7, 2026, 8:35:05 AM (2 days ago) Mar 7
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Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+1543a7...@syzkaller.appspotmail.com
Tested-by: syzbot+1543a7...@syzkaller.appspotmail.com

Tested on:

commit: 4ae12d8b Merge tag 'kbuild-fixes-7.0-2' of git://git.k..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=17616b5a580000
kernel config: https://syzkaller.appspot.com/x/.config?x=242f02fcd3fbc8f3
dashboard link: https://syzkaller.appspot.com/bug?extid=1543a7d954d9c6d00407
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
patch: https://syzkaller.appspot.com/x/patch.diff?x=1789d8d6580000

Note: testing is done by a robot and is best-effort only.

Guoyu Su

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Mar 7, 2026, 2:07:37 PM (2 days ago) Mar 7
to syzbot+1543a7...@syzkaller.appspotmail.com, syzkall...@googlegroups.com
#syz test
0001-net-clear-mangleid_features-for-SKB_GSO_DODGY-TCPv4.patch

Scars

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Mar 8, 2026, 3:12:13 AM (yesterday) Mar 8
to syzbot+1543a7...@syzkaller.appspotmail.com, syzkall...@googlegroups.com
#syz test
0001-net-use-skb_header_pointer-in-gso_features_check-for.patch

syzbot

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Mar 8, 2026, 3:45:05 AM (yesterday) Mar 8
to linux-...@vger.kernel.org, syzkall...@googlegroups.com, yss28134...@gmail.com
Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+1543a7...@syzkaller.appspotmail.com
Tested-by: syzbot+1543a7...@syzkaller.appspotmail.com

Tested on:

commit: c23719ab Merge tag 'x86-urgent-2026-03-08' of git://gi..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=17af0806580000
kernel config: https://syzkaller.appspot.com/x/.config?x=242f02fcd3fbc8f3
dashboard link: https://syzkaller.appspot.com/bug?extid=1543a7d954d9c6d00407
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
patch: https://syzkaller.appspot.com/x/patch.diff?x=101d3fe6580000
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