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a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1688368647; x=1690960647; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=0hnHpIHP0MmQmToWJQ8RUHzi1Z6asIXxH+8Z3t+Oc5Y=; b=cnT424NNMjVcj2MDPDA0dgJAA0AWTOJksyEbKpJkxk504nFd5kloa8C7kYJwBFmYzz WHGiN9ausolnqGcKDN2NKBef5W14XLEtkM7PmffBuCNw36E5JfDupwGX5coaQ1UlDJjX lvjyS1AcYWjGSUvjt/uc0grUh9+WwlnMAU6LDbTMzk0ocQuzaGPNuQ45HEiReVPd1ukN aCXGvzmBggD083rp3TFw/WzOiYhjIIlhRkstXSlyIzdh+AdFrfHhL3MqjfUio0HVTDWj it1KouqjvMUrnP4loOX8BXI2mS/RhPVN63Jg5jzGPo+hiDvCz+iPFTu+aGDt8wkfmUDt CAKQ== X-Gm-Message-State: ABy/qLapYqaVzwVVe8KvcgVYVTsrxDPhcneTDBaq9ELX0JN1irQtORYd EM5dfKe8o+A+m5Ocs9wVgxIQzUtHO8Gp1jDFvqFoGw== X-Google-Smtp-Source: APBJJlEe0MMNIljnBBhTRv0r9bOqt1AjvoM9bTpWOot0Iink8OeixsF6Dur+PsQx8Zz7AKZwBHUumOblvvNlLVruqcc= X-Received: by 2002:a05:600c:34c2:b0:3f7:e4d8:2569 with SMTP id d2-20020a05600c34c200b003f7e4d82569mr110181wmq.5.1688368646788; Mon, 03 Jul 2023 00:17:26 -0700 (PDT) MIME-Version: 1.0 References: <0000000000002373f005ff843b58@google.com> <1bb83e9d-6d7e-3c80-12f6-847bf2dc865e@google.com> In-Reply-To: <1bb83e9d-6d7e-3c80-12f6-847bf2dc865e@google.com> From: Dmitry Vyukov Date: Mon, 3 Jul 2023 09:17:11 +0200 Message-ID: Subject: Re: [syzbot] [mm?] [reiserfs?] kernel panic: stack is corrupted in ___slab_alloc To: David Rientjes Cc: syzbot , 42.hyeyoo@gmail.com, Andrew Morton , cl@linux.com, iamjoonsoo.kim@lge.com, keescook@chromium.org, linux-fsdevel@vger.kernel.org, linux-hardening@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, penberg@kernel.org, reiserfs-devel@vger.kernel.org, roman.gushchin@linux.dev, syzkaller-bugs@googlegroups.com, Vlastimil Babka , Jan Kara Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 744882001A X-Rspam-User: X-Rspamd-Server: rspam04 X-Stat-Signature: jgrtbnwqjwx9jtzs43dfjg1rxzdgogph X-HE-Tag: 1688368648-800360 X-HE-Meta: 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 XBDVcIY8 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Mon, 3 Jul 2023 at 09:14, 'David Rientjes' via syzkaller-bugs wrote: > > On Sun, 2 Jul 2023, syzbot wrote: > > > Hello, > > > > syzbot found the following issue on: > > > > HEAD commit: e8f75c0270d9 Merge tag 'x86_sgx_for_v6.5' of git://git.ker.. > > git tree: upstream > > console output: https://syzkaller.appspot.com/x/log.txt?x=168b84fb280000 > > kernel config: https://syzkaller.appspot.com/x/.config?x=a98ec7f738e43bd4 > > dashboard link: https://syzkaller.appspot.com/bug?extid=cf0693aee9ea61dda749 > > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 > > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10310670a80000 > > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1220c777280000 > > > > Downloadable assets: > > disk image: https://storage.googleapis.com/syzbot-assets/f27c1d41217a/disk-e8f75c02.raw.xz > > vmlinux: https://storage.googleapis.com/syzbot-assets/843ae5d5c810/vmlinux-e8f75c02.xz > > kernel image: https://storage.googleapis.com/syzbot-assets/da48bc4c0ec1/bzImage-e8f75c02.xz > > mounted in repro: https://storage.googleapis.com/syzbot-assets/658601e354e4/mount_0.gz > > > > IMPORTANT: if you fix the issue, please add the following tag to the commit: > > Reported-by: syzbot+cf0693aee9ea61dda749@syzkaller.appspotmail.com > > > > Kernel panic - not syncing: stack-protector: Kernel stack is corrupted in: ___slab_alloc+0x12c3/0x1400 mm/slub.c:3270 > > CPU: 0 PID: 5009 Comm: syz-executor248 Not tainted 6.4.0-syzkaller-01406-ge8f75c0270d9 #0 > > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 > > Call Trace: > > > > __dump_stack lib/dump_stack.c:88 [inline] > > dump_stack_lvl+0xd9/0x150 lib/dump_stack.c:106 > > panic+0x686/0x730 kernel/panic.c:340 > > __stack_chk_fail+0x19/0x20 kernel/panic.c:759 > > ___slab_alloc+0x12c3/0x1400 mm/slub.c:3270 > > > > This is happening during while mounting reiserfs, so I'm inclined to think > it's more of a reisterfs issue than a slab allocator issue :/ Now we can make it official :) #syz set subsystems: reiserfs To remove from open mm issues: https://syzkaller.appspot.com/upstream/s/mm to reiserfs issues: https://syzkaller.appspot.com/upstream/s/reiserfs