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[syzbot] [arm-msm?] [net?] WARNING: refcount bug in qrtr_node_lookup (2) | 0 (1) | 2023/03/23 00:39 |
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Title | Replies (including bot) | Last reply |
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[syzbot] [arm-msm?] [net?] WARNING: refcount bug in qrtr_node_lookup (2) | 0 (1) | 2023/03/23 00:39 |
Kernel | Title | Repro | Cause bisect | Fix bisect | Count | Last | Reported | Patched | Status |
---|---|---|---|---|---|---|---|---|---|
linux-5.15 | WARNING: refcount bug in qrtr_node_lookup | C | done | 1 | 700d | 700d | 3/3 | fixed on 2023/04/17 07:57 | |
linux-6.1 | WARNING: refcount bug in qrtr_node_lookup | C | done | 1 | 700d | 700d | 3/3 | fixed on 2023/04/17 07:57 | |
upstream | WARNING: refcount bug in qrtr_node_lookup arm-msm net | C | done | done | 16 | 1295d | 1619d | 0/28 | auto-obsoleted due to no activity on 2022/09/28 21:58 |
Created | Duration | User | Patch | Repo | Result |
---|---|---|---|---|---|
2023/05/25 08:28 | 23m | retest repro | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | OK log | |
2023/03/23 02:16 | 24m | hdanton@sina.com | patch | https://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git fe15c26ee26e | OK log |
------------[ cut here ]------------ refcount_t: addition on 0; use-after-free. WARNING: CPU: 1 PID: 9 at lib/refcount.c:25 refcount_warn_saturate+0x1a8/0x20c lib/refcount.c:25 Modules linked in: CPU: 1 PID: 9 Comm: kworker/u4:0 Not tainted 6.3.0-rc1-syzkaller-gfe15c26ee26e #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 Workqueue: qrtr_ns_handler qrtr_ns_worker pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : refcount_warn_saturate+0x1a8/0x20c lib/refcount.c:25 lr : refcount_warn_saturate+0x1a8/0x20c lib/refcount.c:25 sp : ffff80001a3a6da0 x29: ffff80001a3a6da0 x28: dfff800000000000 x27: ffff700003474dc8 x26: ffff80001a3a6e60 x25: 0000000000000000 x24: 00000000003a6056 x23: ffff0000d22173f0 x22: 0000000000000000 x21: 0000000000000002 x20: ffff0000d751c098 x19: ffff8000186ee000 x18: ffff80001a3a62a0 x17: 0000000000000000 x16: ffff80001246250c x15: 0000000000000000 x14: 0000000000000000 x13: 0000000000000001 x12: 0000000000000001 x11: ff808000081bd230 x10: 0000000000000000 x9 : 04bb8433d1680a00 x8 : 04bb8433d1680a00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001a3a6698 x4 : ffff800015dc52c0 x3 : ffff80000859c514 x2 : 0000000000000001 x1 : 0000000100000001 x0 : 0000000000000000 Call trace: refcount_warn_saturate+0x1a8/0x20c lib/refcount.c:25 __refcount_inc include/linux/refcount.h:250 [inline] refcount_inc include/linux/refcount.h:267 [inline] kref_get include/linux/kref.h:45 [inline] qrtr_node_acquire net/qrtr/af_qrtr.c:202 [inline] qrtr_node_lookup+0xdc/0x100 net/qrtr/af_qrtr.c:398 qrtr_send_resume_tx net/qrtr/af_qrtr.c:1003 [inline] qrtr_recvmsg+0x3dc/0x954 net/qrtr/af_qrtr.c:1070 sock_recvmsg_nosec net/socket.c:1015 [inline] sock_recvmsg net/socket.c:1036 [inline] kernel_recvmsg+0x124/0x18c net/socket.c:1061 qrtr_ns_worker+0x294/0x513c net/qrtr/ns.c:688 process_one_work+0x868/0x16f4 kernel/workqueue.c:2390 worker_thread+0x8e0/0xfe8 kernel/workqueue.c:2537 kthread+0x24c/0x2d4 kernel/kthread.c:376 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:870 irq event stamp: 766220 hardirqs last enabled at (766219): [<ffff800012543b48>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (766219): [<ffff800012543b48>] _raw_spin_unlock_irqrestore+0x44/0xa4 kernel/locking/spinlock.c:194 hardirqs last disabled at (766220): [<ffff80001254393c>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (766220): [<ffff80001254393c>] _raw_spin_lock_irqsave+0x2c/0x88 kernel/locking/spinlock.c:162 softirqs last enabled at (766216): [<ffff80001066ca80>] spin_unlock_bh include/linux/spinlock.h:395 [inline] softirqs last enabled at (766216): [<ffff80001066ca80>] lock_sock_nested+0xe8/0x138 net/core/sock.c:3480 softirqs last disabled at (766214): [<ffff80001066ca28>] spin_lock_bh include/linux/spinlock.h:355 [inline] softirqs last disabled at (766214): [<ffff80001066ca28>] lock_sock_nested+0x90/0x138 net/core/sock.c:3476 ---[ end trace 0000000000000000 ]---
Time | Kernel | Commit | Syzkaller | Config | Log | Report | Syz repro | C repro | VM info | Assets (help?) | Manager | Title |
---|---|---|---|---|---|---|---|---|---|---|---|---|
2023/03/16 08:21 | git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci | fe15c26ee26e | 18b58603 | .config | console log | report | syz | C | [disk image] [vmlinux] [kernel image] | ci-upstream-gce-arm64 | WARNING: refcount bug in qrtr_node_lookup |