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List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:184d:b0:40c:cf06:ea2a with SMTP id e9e14a558f8ab-424816f2c45mr17310755ab.2.1758224487064; Thu, 18 Sep 2025 12:41:27 -0700 (PDT) Date: Thu, 18 Sep 2025 12:41:27 -0700 In-Reply-To: <20250918140451.1289454-1-elver@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68cc6067.a00a0220.37dadf.0003.GAE@google.com> Subject: [syzbot ci] Re: Compiler-Based Capability- and Locking-Analysis From: syzbot ci To: arnd@arndb.de, boqun.feng@gmail.com, bvanassche@acm.org, corbet@lwn.net, davem@davemloft.net, dvyukov@google.com, edumazet@google.com, elver@google.com, frederic@kernel.org, glider@google.com, gregkh@linuxfoundation.org, hch@lst.de, herbert@gondor.apana.org.au, irogers@google.com, jannh@google.com, joelagnelf@nvidia.com, josh@joshtriplett.org, justinstitt@google.com, kasan-dev@googlegroups.com, kees@kernel.org, linux-crypto@vger.kernel.org, linux-doc@vger.kernel.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-security-module@vger.kernel.org, linux-sparse@vger.kernel.org, llvm@lists.linux.dev, longman@redhat.com, luc.vanoostenryck@gmail.com, lukas.bulwahn@gmail.com, mark.rutland@arm.com, mathieu.desnoyers@efficios.com, mingo@kernel.org, mingo@redhat.com, morbo@google.com, nathan@kernel.org, neeraj.upadhyay@kernel.org, nick.desaulniers@gmail.com, ojeda@kernel.org, paulmck@kernel.org, penguin-kernel@i-love.sakura.ne.jp, peterz@infradead.org, rcu@vger.kernel.org, rostedt@goodmis.org, takedakn@nttdata.co.jp, tglx@linutronix.de, tgraf@suug.ch, urezki@gmail.com, will@kernel.org Cc: syzbot@lists.linux.dev, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot ci has tested the following series [v3] Compiler-Based Capability- and Locking-Analysis https://lore.kernel.org/all/20250918140451.1289454-1-elver@google.com * [PATCH v3 01/35] compiler_types: Move lock checking attributes to compiler-capability-analysis.h * [PATCH v3 02/35] compiler-capability-analysis: Add infrastructure for Clang's capability analysis * [PATCH v3 03/35] compiler-capability-analysis: Add test stub * [PATCH v3 04/35] Documentation: Add documentation for Compiler-Based Capability Analysis * [PATCH v3 05/35] checkpatch: Warn about capability_unsafe() without comment * [PATCH v3 06/35] cleanup: Basic compatibility with capability analysis * [PATCH v3 07/35] lockdep: Annotate lockdep assertions for capability analysis * [PATCH v3 08/35] locking/rwlock, spinlock: Support Clang's capability analysis * [PATCH v3 09/35] compiler-capability-analysis: Change __cond_acquires to take return value * [PATCH v3 10/35] locking/mutex: Support Clang's capability analysis * [PATCH v3 11/35] locking/seqlock: Support Clang's capability analysis * [PATCH v3 12/35] bit_spinlock: Include missing * [PATCH v3 13/35] bit_spinlock: Support Clang's capability analysis * [PATCH v3 14/35] rcu: Support Clang's capability analysis * [PATCH v3 15/35] srcu: Support Clang's capability analysis * [PATCH v3 16/35] kref: Add capability-analysis annotations * [PATCH v3 17/35] locking/rwsem: Support Clang's capability analysis * [PATCH v3 18/35] locking/local_lock: Include missing headers * [PATCH v3 19/35] locking/local_lock: Support Clang's capability analysis * [PATCH v3 20/35] locking/ww_mutex: Support Clang's capability analysis * [PATCH v3 21/35] debugfs: Make debugfs_cancellation a capability struct * [PATCH v3 22/35] compiler-capability-analysis: Remove Sparse support * [PATCH v3 23/35] compiler-capability-analysis: Remove __cond_lock() function-like helper * [PATCH v3 24/35] compiler-capability-analysis: Introduce header suppressions * [PATCH v3 25/35] compiler: Let data_race() imply disabled capability analysis * [PATCH v3 26/35] MAINTAINERS: Add entry for Capability Analysis * [PATCH v3 27/35] kfence: Enable capability analysis * [PATCH v3 28/35] kcov: Enable capability analysis * [PATCH v3 29/35] kcsan: Enable capability analysis * [PATCH v3 30/35] stackdepot: Enable capability analysis * [PATCH v3 31/35] rhashtable: Enable capability analysis * [PATCH v3 32/35] printk: Move locking annotation to printk.c * [PATCH v3 33/35] security/tomoyo: Enable capability analysis * [PATCH v3 34/35] crypto: Enable capability analysis * [PATCH v3 35/35] sched: Enable capability analysis for core.c and fair.c and found the following issue: general protection fault in validate_page_before_insert Full report is available here: https://ci.syzbot.org/series/81182522-74c0-4494-bcf8-976133df7dc7 *** general protection fault in validate_page_before_insert tree: torvalds URL: https://kernel.googlesource.com/pub/scm/linux/kernel/git/torvalds/linux base: f83ec76bf285bea5727f478a68b894f5543ca76e arch: amd64 compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8 config: https://ci.syzbot.org/builds/8f7ff868-4cf7-40da-b62b-45ebfec4e994/config cgroup: Unknown subsys name 'net' cgroup: Unknown subsys name 'cpuset' cgroup: Unknown subsys name 'rlimit' Oops: general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 UID: 0 PID: 5775 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014 RIP: 0010:validate_page_before_insert+0x2a/0x300 Code: 55 41 57 41 56 41 55 41 54 53 48 89 f3 49 89 fe 49 bd 00 00 00 00 00 fc ff df e8 f1 3f b3 ff 4c 8d 7b 08 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 ff e8 17 b3 16 00 4d 8b 3f 4c 89 fe 48 RSP: 0018:ffffc90002a5f608 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffff888022891cc0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888028c71200 RBP: ffffc90002a5f720 R08: 0000000000000000 R09: 1ffff11021cf81e0 R10: dffffc0000000000 R11: ffffed1021cf81e1 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff888028c71200 R15: 0000000000000008 FS: 00005555815ad500(0000) GS:ffff8880b8615000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1788fd20b8 CR3: 000000010d8a4000 CR4: 00000000000006f0 Call Trace: insert_page+0x90/0x2c0 kcov_mmap+0xc3/0x130 mmap_region+0x18ae/0x20c0 do_mmap+0xc45/0x10d0 vm_mmap_pgoff+0x2a6/0x4d0 ksys_mmap_pgoff+0x51f/0x760 do_syscall_64+0xfa/0x3b0 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f1788d8ebe3 Code: f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 41 89 ca 41 f7 c1 ff 0f 00 00 75 14 b8 09 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 25 c3 0f 1f 40 00 48 c7 c0 a8 ff ff ff 64 c7 RSP: 002b:00007ffc8a37e638 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007ffc8a37e670 RCX: 00007f1788d8ebe3 RDX: 0000000000000003 RSI: 0000000000400000 RDI: 00007f17867ff000 RBP: 00007ffc8a37e940 R08: 00000000000000d8 R09: 0000000000000000 R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000003 R13: 0000000000000000 R14: 00007f1788fa11c0 R15: 00007f1788e2e478 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:validate_page_before_insert+0x2a/0x300 Code: 55 41 57 41 56 41 55 41 54 53 48 89 f3 49 89 fe 49 bd 00 00 00 00 00 fc ff df e8 f1 3f b3 ff 4c 8d 7b 08 4c 89 f8 48 c1 e8 03 <42> 80 3c 28 00 74 08 4c 89 ff e8 17 b3 16 00 4d 8b 3f 4c 89 fe 48 RSP: 0018:ffffc90002a5f608 EFLAGS: 00010202 RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffff888022891cc0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff888028c71200 RBP: ffffc90002a5f720 R08: 0000000000000000 R09: 1ffff11021cf81e0 R10: dffffc0000000000 R11: ffffed1021cf81e1 R12: dffffc0000000000 R13: dffffc0000000000 R14: ffff888028c71200 R15: 0000000000000008 FS: 00005555815ad500(0000) GS:ffff8880b8615000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f1788fd20b8 CR3: 000000010d8a4000 CR4: 00000000000006f0 *** If these findings have caused you to resend the series or submit a separate fix, please add the following tag to your commit message: Tested-by: syzbot@syzkaller.appspotmail.com --- This report is generated by a bot. It may contain errors. syzbot ci engineers can be reached at syzkaller@googlegroups.com.