Re: [syzbot] [nfs?] [net?] KASAN: vmalloc-out-of-bounds Read in rpc_queue_upcall

[Chuck Lever]

On 9/7/26 1:44 PM, syzbot wrote:
> Hello,
> 
> syzbot found the following issue on:
> 
> HEAD commit:    df2908090cda Linux 7.3-rc2
> git tree:       git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
> console output: https://syzkaller.appspot.com/x/log.txt?x=1416cc8e580000
> kernel config:  https://syzkaller.appspot.com/x/.config?x=8c5c3949d762a91f
> dashboard link: https://syzkaller.appspot.com/bug?extid=d5c77cabf7a3492aa650
> compiler:       gcc (Debian 14.2.0-19) 14.2.0, GNU ld (GNU Binutils for Debian) 2.44
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=14daa071580000

The fix is already queued in nfsd-testing:

  https://git.kernel.org/pub/scm/linux/kernel/git/cel/linux.git/commit/?id=8e5890ef0296

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux.git nfsd-testing

-- 
Chuck Lever (Come to NFS bake-a-thon! https://nfsv4bat.org)