* Re: [syzbot] [usb?] [media?] KASAN: use-after-free Read in em28xx_init_extension (2)
[not found] <000000000000453f3d05db72fc7e@google.com>
@ 2025-05-13 15:02 ` syzbot
2025-05-13 15:11 ` Alan Stern
0 siblings, 1 reply; 2+ messages in thread
From: syzbot @ 2025-05-13 15:02 UTC (permalink / raw)
To: gregkh, hdanton, linux-kernel, linux-media, linux-usb, mchehab,
paskripkin, stern, syzkaller-bugs
syzbot has bisected this issue to:
commit a368ecde8a5055b627749b09c6218ef793043e47
Author: Alan Stern <stern@rowland.harvard.edu>
Date: Thu Jun 27 19:56:18 2024 +0000
USB: core: Fix duplicate endpoint bug by clearing reserved bits in the descriptor
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12cf6cd4580000
start commit: cd802e7e5f1e Merge tag 'for-linus' of git://git.kernel.org..
git tree: upstream
final oops: https://syzkaller.appspot.com/x/report.txt?x=11cf6cd4580000
console output: https://syzkaller.appspot.com/x/log.txt?x=16cf6cd4580000
kernel config: https://syzkaller.appspot.com/x/.config?x=91c351a0f6229e67
dashboard link: https://syzkaller.appspot.com/bug?extid=99d6c66dbbc484f50e1c
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=143a7768580000
Reported-by: syzbot+99d6c66dbbc484f50e1c@syzkaller.appspotmail.com
Fixes: a368ecde8a50 ("USB: core: Fix duplicate endpoint bug by clearing reserved bits in the descriptor")
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [syzbot] [usb?] [media?] KASAN: use-after-free Read in em28xx_init_extension (2)
2025-05-13 15:02 ` [syzbot] [usb?] [media?] KASAN: use-after-free Read in em28xx_init_extension (2) syzbot
@ 2025-05-13 15:11 ` Alan Stern
0 siblings, 0 replies; 2+ messages in thread
From: Alan Stern @ 2025-05-13 15:11 UTC (permalink / raw)
To: syzbot
Cc: gregkh, hdanton, linux-kernel, linux-media, linux-usb, mchehab,
paskripkin, syzkaller-bugs
On Tue, May 13, 2025 at 08:02:01AM -0700, syzbot wrote:
> syzbot has bisected this issue to:
>
> commit a368ecde8a5055b627749b09c6218ef793043e47
> Author: Alan Stern <stern@rowland.harvard.edu>
> Date: Thu Jun 27 19:56:18 2024 +0000
>
> USB: core: Fix duplicate endpoint bug by clearing reserved bits in the descriptor
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12cf6cd4580000
> start commit: cd802e7e5f1e Merge tag 'for-linus' of git://git.kernel.org..
> git tree: upstream
> final oops: https://syzkaller.appspot.com/x/report.txt?x=11cf6cd4580000
> console output: https://syzkaller.appspot.com/x/log.txt?x=16cf6cd4580000
> kernel config: https://syzkaller.appspot.com/x/.config?x=91c351a0f6229e67
> dashboard link: https://syzkaller.appspot.com/bug?extid=99d6c66dbbc484f50e1c
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=143a7768580000
>
> Reported-by: syzbot+99d6c66dbbc484f50e1c@syzkaller.appspotmail.com
> Fixes: a368ecde8a50 ("USB: core: Fix duplicate endpoint bug by clearing reserved bits in the descriptor")
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection
Clearly a ridiculous claim. Maybe the bug fixed by that commit covered
up the actual cause of this problem.
Alan Stern
^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] <000000000000453f3d05db72fc7e@google.com>
2025-05-13 15:02 ` [syzbot] [usb?] [media?] KASAN: use-after-free Read in em28xx_init_extension (2) syzbot
2025-05-13 15:11 ` Alan Stern
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