netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. BUG: sleeping function called from invalid context at mm/slab.h:422 in_atomic(): 1, irqs_disabled(): 1, pid: 2650, name: syz-executor.4 3 locks held by syz-executor.4/2650: #0: 0000000081579706 (&ep->mtx){+.+.}, at: __do_sys_epoll_ctl fs/eventpoll.c:2075 [inline] #0: 0000000081579706 (&ep->mtx){+.+.}, at: __se_sys_epoll_ctl+0x5d2/0x2b90 fs/eventpoll.c:1997 #1: 00000000fbd6409d (&dev->dev_mutex){+.+.}, at: v4l2_m2m_fop_poll+0x91/0x110 drivers/media/v4l2-core/v4l2-mem2mem.c:1056 #2: 00000000c33f963d (&(&q->done_lock)->rlock){....}, at: v4l2_m2m_poll+0x140/0x720 drivers/media/v4l2-core/v4l2-mem2mem.c:623 irq event stamp: 3478 hardirqs last enabled at (3477): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (3477): [] _raw_spin_unlock_irqrestore+0x79/0xe0 kernel/locking/spinlock.c:184 hardirqs last disabled at (3478): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (3478): [] _raw_spin_lock_irqsave+0x66/0xc0 kernel/locking/spinlock.c:152 softirqs last enabled at (0): [] copy_process.part.0+0x15b9/0x8260 kernel/fork.c:1856 softirqs last disabled at (0): [<0000000000000000>] (null) Preemption disabled at: [<0000000000000000>] (null) CPU: 0 PID: 2650 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 ___might_sleep.cold+0x235/0x250 kernel/sched/core.c:6192 slab_pre_alloc_hook mm/slab.h:422 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc+0x26d/0x370 mm/slab.c:3557 ep_ptable_queue_proc+0xaf/0x390 fs/eventpoll.c:1242 poll_wait include/linux/poll.h:51 [inline] v4l2_m2m_poll+0x633/0x720 drivers/media/v4l2-core/v4l2-mem2mem.c:625 v4l2_m2m_fop_poll+0xa4/0x110 drivers/media/v4l2-core/v4l2-mem2mem.c:1058 v4l2_poll+0x146/0x1f0 drivers/media/v4l2-core/v4l2-dev.c:350 vfs_poll include/linux/poll.h:90 [inline] ep_item_poll+0x14a/0x3e0 fs/eventpoll.c:890 ep_insert fs/eventpoll.c:1479 [inline] __do_sys_epoll_ctl fs/eventpoll.c:2112 [inline] __se_sys_epoll_ctl+0x1b04/0x2b90 fs/eventpoll.c:1997 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7ff599b9ae99 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff598510168 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9 RAX: ffffffffffffffda RBX: 00007ff599cadf60 RCX: 00007ff599b9ae99 RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000005 RBP: 00007ff599bf4ff1 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000200000c0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffceef5a86f R14: 00007ff598510300 R15: 0000000000022000 netlink: 28 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 28 bytes leftover after parsing attributes in process `syz-executor.3'. audit: type=1804 audit(1640363806.673:221): pid=2690 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir397925356/syzkaller.ivkIA1/638/bus" dev="sda1" ino=14849 res=1 netlink: 28 bytes leftover after parsing attributes in process `syz-executor.3'. audit: type=1800 audit(1640363806.693:222): pid=2690 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.2" name="bus" dev="sda1" ino=14849 res=0 audit: type=1800 audit(1640363806.993:223): pid=2717 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.3" name="bus" dev="sda1" ino=14849 res=0 audit: type=1800 audit(1640363807.013:224): pid=2717 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.3" name="bus" dev="sda1" ino=14849 res=0 BUG: sleeping function called from invalid context at mm/slab.h:422 in_atomic(): 1, irqs_disabled(): 1, pid: 2650, name: syz-executor.4 3 locks held by syz-executor.4/2650: #0: 0000000081579706 (&ep->mtx){+.+.}, at: __do_sys_epoll_ctl fs/eventpoll.c:2075 [inline] #0: 0000000081579706 (&ep->mtx){+.+.}, at: __se_sys_epoll_ctl+0x5d2/0x2b90 fs/eventpoll.c:1997 #1: 00000000fbd6409d (&dev->dev_mutex){+.+.}, at: v4l2_m2m_fop_poll+0x91/0x110 drivers/media/v4l2-core/v4l2-mem2mem.c:1056 #2: 000000005c890050 (&(&q->done_lock)->rlock){....}, at: v4l2_m2m_poll+0x199/0x720 drivers/media/v4l2-core/v4l2-mem2mem.c:628 irq event stamp: 3788 hardirqs last enabled at (3787): [] __free_pages_ok+0x54d/0xd30 mm/page_alloc.c:1286 hardirqs last disabled at (3788): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (3788): [] _raw_spin_lock_irqsave+0x66/0xc0 kernel/locking/spinlock.c:152 softirqs last enabled at (3764): [] __do_softirq+0x678/0x980 kernel/softirq.c:318 softirqs last disabled at (3483): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (3483): [] irq_exit+0x215/0x260 kernel/softirq.c:412 Preemption disabled at: [<0000000000000000>] (null) CPU: 0 PID: 2650 Comm: syz-executor.4 Tainted: G W 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 ___might_sleep.cold+0x235/0x250 kernel/sched/core.c:6192 slab_pre_alloc_hook mm/slab.h:422 [inline] slab_alloc mm/slab.c:3383 [inline] kmem_cache_alloc+0x26d/0x370 mm/slab.c:3557 ep_ptable_queue_proc+0xaf/0x390 fs/eventpoll.c:1242 poll_wait include/linux/poll.h:51 [inline] v4l2_m2m_poll+0x583/0x720 drivers/media/v4l2-core/v4l2-mem2mem.c:639 v4l2_m2m_fop_poll+0xa4/0x110 drivers/media/v4l2-core/v4l2-mem2mem.c:1058 v4l2_poll+0x146/0x1f0 drivers/media/v4l2-core/v4l2-dev.c:350 vfs_poll include/linux/poll.h:90 [inline] ep_item_poll+0x14a/0x3e0 fs/eventpoll.c:890 ep_insert fs/eventpoll.c:1479 [inline] __do_sys_epoll_ctl fs/eventpoll.c:2112 [inline] __se_sys_epoll_ctl+0x1b04/0x2b90 fs/eventpoll.c:1997 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7ff599b9ae99 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ff598510168 EFLAGS: 00000246 ORIG_RAX: 00000000000000e9 RAX: ffffffffffffffda RBX: 00007ff599cadf60 RCX: 00007ff599b9ae99 RDX: 0000000000000003 RSI: 0000000000000001 RDI: 0000000000000005 RBP: 00007ff599bf4ff1 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000200000c0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffceef5a86f R14: 00007ff598510300 R15: 0000000000022000 audit: type=1800 audit(1640363807.594:225): pid=2757 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.3" name="bus" dev="sda1" ino=15089 res=0 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.5'. audit: type=1804 audit(1640363807.604:226): pid=2750 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.2" name="/root/syzkaller-testdir397925356/syzkaller.ivkIA1/640/bus" dev="sda1" ino=15105 res=1 audit: type=1800 audit(1640363807.604:227): pid=2750 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.2" name="bus" dev="sda1" ino=15105 res=0 audit: type=1800 audit(1640363807.614:228): pid=2756 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.3" name="bus" dev="sda1" ino=15089 res=0 audit: type=1800 audit(1640363807.874:229): pid=2789 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.3" name="bus" dev="sda1" ino=15041 res=0 EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (60935!=0) ntfs: (device loop3): parse_options(): Unrecognized mount option Dqú´Íµ…˜öé™o«Ò«È”!ì_l8åû¥ŠP–©Â‡MÅ. EXT4-fs (loop4): orphan cleanup on readonly fs EXT4-fs error (device loop4): ext4_quota_enable:5844: inode #3: comm syz-executor.4: iget: bad extra_isize 25647 (inode size 256) EXT4-fs (loop4): Remounting filesystem read-only EXT4-fs error (device loop4): ext4_quota_enable:5846: comm syz-executor.4: Bad quota inode # 3 EXT4-fs warning (device loop4): ext4_enable_quotas:5883: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix. EXT4-fs (loop4): Cannot turn on quotas: error -117 EXT4-fs (loop4): mounted filesystem without journal. Opts: errors=remount-ro, EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (60935!=0) EXT4-fs (loop4): orphan cleanup on readonly fs EXT4-fs error (device loop4): ext4_quota_enable:5844: inode #3: comm syz-executor.4: iget: bad extra_isize 25647 (inode size 256) EXT4-fs (loop4): Remounting filesystem read-only EXT4-fs error (device loop4): ext4_quota_enable:5846: comm syz-executor.4: Bad quota inode # 3 EXT4-fs warning (device loop4): ext4_enable_quotas:5883: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix. EXT4-fs (loop4): Cannot turn on quotas: error -117 EXT4-fs (loop4): mounted filesystem without journal. Opts: errors=remount-ro, EXT4-fs (loop4): ext4_check_descriptors: Checksum for group 0 failed (60935!=0) EXT4-fs (loop4): orphan cleanup on readonly fs EXT4-fs error (device loop4): ext4_quota_enable:5844: inode #3: comm syz-executor.4: iget: bad extra_isize 25647 (inode size 256) EXT4-fs (loop4): Remounting filesystem read-only EXT4-fs error (device loop4): ext4_quota_enable:5846: comm syz-executor.4: Bad quota inode # 3 EXT4-fs warning (device loop4): ext4_enable_quotas:5883: Failed to enable quota tracking (type=0, err=-117). Please run e2fsck to fix. EXT4-fs (loop4): Cannot turn on quotas: error -117 EXT4-fs (loop4): mounted filesystem without journal. Opts: errors=remount-ro, kauditd_printk_skb: 10 callbacks suppressed audit: type=1804 audit(1640363812.594:235): pid=3129 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.3" name="/root/syzkaller-testdir452300735/syzkaller.qznr1g/527/bus" dev="sda1" ino=15981 res=1 audit: type=1800 audit(1640363812.624:236): pid=3129 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.3" name="bus" dev="sda1" ino=15981 res=0 netlink: 'syz-executor.3': attribute type 1 has an invalid length. device bridge3 entered promiscuous mode netlink: 'syz-executor.5': attribute type 10 has an invalid length. bond0: team0 is up - this may be due to an out of date ifenslave netlink: 'syz-executor.5': attribute type 10 has an invalid length. bridge0: port 4(team0) entered blocking state bridge0: port 4(team0) entered disabled state device team0 entered promiscuous mode device team_slave_0 entered promiscuous mode device team_slave_1 entered promiscuous mode bridge0: port 4(team0) entered blocking state bridge0: port 4(team0) entered forwarding state netlink: 'syz-executor.3': attribute type 1 has an invalid length. device bridge4 entered promiscuous mode