Messages in this thread Patch in this message | | | From | Hillf Danton <> | Subject | Re: [syzbot] [mm?] KASAN: slab-use-after-free Read in __vma_reservation_common | Date | Sun, 14 Apr 2024 11:31:19 +0800 |
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On Sat, 13 Apr 2024 11:34:32 -0700 > syzbot has found a reproducer for the following issue on: > > HEAD commit: 9ed46da14b9b Add linux-next specific files for 20240412 > git tree: linux-next > console output: https://syzkaller.appspot.com/x/log.txt?x=12bd4457180000 > kernel config: https://syzkaller.appspot.com/x/.config?x=7ea0abc478c49859 > dashboard link: https://syzkaller.appspot.com/bug?extid=ad1b592fc4483655438b > compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1370ea67180000
#syz test https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git 9ed46da14b9b
--- x/arch/x86/mm/fault.c +++ y/arch/x86/mm/fault.c @@ -1353,8 +1353,7 @@ void do_user_addr_fault(struct pt_regs * } #endif - if (!(flags & FAULT_FLAG_USER)) - goto lock_mmap; + goto lock_mmap; vma = lock_vma_under_rcu(mm, address); if (!vma) --
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