Messages in this thread | ![/](/images/icornerl.gif) | | From | Kuniyuki Iwashima <> | Subject | Re: [Linux kernel bug] UBSAN: shift-out-of-bounds in dctcp_update_alpha | Date | Fri, 17 May 2024 18:27:30 +0900 |
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From: Sam Sun <samsun1006219@gmail.com> Date: Fri, 17 May 2024 13:03:18 +0800 > Dear developers and maintainers, > > We encountered a shift-out-of-bounds bug while using our modified > syzkaller. It was tested against the latest upstream kernel (6.9). The > kernel was compiled by clang 14.0.0, and kernel config and C repro are > attached to this email. Kernel crash log is listed below. > ------------[ cut here ]------------ > UBSAN: shift-out-of-bounds in net/ipv4/tcp_dctcp.c:143:12
Just for the record, I posted a patch:
https://lore.kernel.org/netdev/20240517091626.32772-1-kuniyu@amazon.com/
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