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Of the currently open syzbot reports against the upstream kernel, I've manually marked 9 of them as possibly being bugs in the sound subsystem. I've listed these reports below, sorted by an algorithm that tries to list first the reports most likely to be still valid, important, and actionable.

Of these 9 bugs, 1 was bisected to a commit from the following person:

Takashi Iwai tiwai@suse.de

If you believe a bug is no longer valid, please close the syzbot report by sending a '#syz fix', '#syz dup', or '#syz invalid' command in reply to the original thread, as explained at https://goo.gl/tpsmEJ#status

If you believe I misattributed a bug to the sound subsystem, please let me know, and if possible forward the report to the correct people or mailing list.

Here are the bugs:

-------------------------------------------------------------------------------- Title: KASAN: slab-out-of-bounds Write in default_read_copy_kernel Last occurred: 119 days ago Reported: 195 days ago Branches: Mainline Dashboard link: https://syzkaller.appspot.com/bug?id=04933ddeeb1b542edf54b88ceccdac34de747a4... Original thread: https://lkml.kernel.org/lkml/0000000000004a6256057ca3b6bd@google.com/T/#u

This bug has a C reproducer.

This bug was bisected to:

commit 65766ee0bf7fe8b3be80e2e1c3ef54ad59b29476 Author: Takashi Iwai tiwai@suse.de Date: Fri Nov 9 10:59:45 2018 +0000

ALSA: oss: Use kvzalloc() for local buffer allocations

The original thread for this bug received 1 reply, 96 days ago.

If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+12f17c177de05efea72d@syzkaller.appspotmail.com

If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/0000000000004a6256057ca3b6bd@google.com

-------------------------------------------------------------------------------- Title: WARNING: proc registration bug in snd_info_card_register Last occurred: 27 days ago Reported: 72 days ago Branches: Mainline (with usb-fuzzer patches) Dashboard link: https://syzkaller.appspot.com/bug?id=0cf36d8457554bf03c3cacc44d31ff145a0c1a1... Original thread: https://lkml.kernel.org/lkml/0000000000007f693a058653d90c@google.com/T/#u

This bug has a C reproducer.

No one has replied to the original thread for this bug yet.

This looks like a bug in a sound USB driver.

If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+2e782bf6a60d0fcb932d@syzkaller.appspotmail.com

If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/0000000000007f693a058653d90c@google.com

-------------------------------------------------------------------------------- Title: WARNING in snd_usb_motu_microbookii_communicate/usb_submit_urb Last occurred: 15 days ago Reported: 12 days ago Branches: Mainline (with usb-fuzzer patches) Dashboard link: https://syzkaller.appspot.com/bug?id=125081d1f7eba4b9b25f53aaae53176cd4abb2b... Original thread: https://lkml.kernel.org/lkml/000000000000acb99a058b0d5741@google.com/T/#u

This bug has a syzkaller reproducer only.

No one has replied to the original thread for this bug yet.

This looks like a bug in a sound USB driver.

If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+d952e5e28f5fb7718d23@syzkaller.appspotmail.com

If you send any email or patch for this bug, please reply to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/000000000000acb99a058b0d5741@google.com

-------------------------------------------------------------------------------- Title: INFO: rcu detected stall in snd_seq_write Last occurred: 57 days ago Reported: 300 days ago Branches: Mainline and others Dashboard link: https://syzkaller.appspot.com/bug?id=33501520944e11adedf1c454eec4cb818bee16c... Original thread: https://lkml.kernel.org/lkml/000000000000e5050205746dcbb0@google.com/T/#u

This bug has a syzkaller reproducer only.

The original thread for this bug received 1 reply, 300 days ago.

If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+97aae04ce27e39cbfca9@syzkaller.appspotmail.com

If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/000000000000e5050205746dcbb0@google.com

-------------------------------------------------------------------------------- Title: KASAN: use-after-free Write in check_and_subscribe_port Last occurred: 54 days ago Reported: 47 days ago Branches: Mainline Dashboard link: https://syzkaller.appspot.com/bug?id=2c039ed96840fcfe469c2c5c5fc0bef92e5c9a2... Original thread: https://lkml.kernel.org/lkml/0000000000008af53105884907e9@google.com/T/#u

Unfortunately, this bug does not have a reproducer.

No one has replied to the original thread for this bug yet.

If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+20ab495fadf081e8a2b0@syzkaller.appspotmail.com

If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/0000000000008af53105884907e9@google.com

-------------------------------------------------------------------------------- Title: WARNING: suspicious RCU usage in line6_pcm_acquire Last occurred: 28 days ago Reported: 59 days ago Branches: Mainline (with usb-fuzzer patches) Dashboard link: https://syzkaller.appspot.com/bug?id=a0ea128a37bfe56208042c02d080873dcbdf69a... Original thread: https://lkml.kernel.org/lkml/0000000000007cb1ee0587591549@google.com/T/#u

Unfortunately, this bug does not have a reproducer.

No one has replied to the original thread for this bug yet.

This looks like a bug in a sound USB driver.

If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+06b7a5a8c4acc0445995@syzkaller.appspotmail.com

If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/0000000000007cb1ee0587591549@google.com

-------------------------------------------------------------------------------- Title: KASAN: use-after-free Read in wake_up_if_idle Last occurred: 101 days ago Reported: 237 days ago Branches: Mainline and others Dashboard link: https://syzkaller.appspot.com/bug?id=b1e300cd7b124fc83dd4199d4d1df26310111b0... Original thread: https://lkml.kernel.org/lkml/00000000000066ab7105795f245e@google.com/T/#u

Unfortunately, this bug does not have a reproducer.

No one replied to the original thread for this bug.

If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+2c1253bc508adef78a7f@syzkaller.appspotmail.com

If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/00000000000066ab7105795f245e@google.com

-------------------------------------------------------------------------------- Title: INFO: task hung in snd_seq_write Last occurred: 95 days ago Reported: 300 days ago Branches: Mainline and others Dashboard link: https://syzkaller.appspot.com/bug?id=9366cef8455b032553567ce096a5b31d8307b7d... Original thread: https://lkml.kernel.org/lkml/0000000000001f74de0574710d3e@google.com/T/#u

Unfortunately, this bug does not have a reproducer.

No one replied to the original thread for this bug.

If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+4c595632b98bb8ffcc66@syzkaller.appspotmail.com

If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/0000000000001f74de0574710d3e@google.com

-------------------------------------------------------------------------------- Title: KASAN: slab-out-of-bounds Read in linear_transfer (2) Last occurred: 70 days ago Reported: 61 days ago Branches: linux-next Dashboard link: https://syzkaller.appspot.com/bug?id=e76ec5e68d0556a5eed9c0565fd5535ecc60300... Original thread: https://lkml.kernel.org/lkml/0000000000000f7c8105873507b5@google.com/T/#u

Unfortunately, this bug does not have a reproducer.

No one has replied to the original thread for this bug yet.

If you fix this bug, please add the following tag to the commit: Reported-by: syzbot+e28a58bb80f4c67a2b89@syzkaller.appspotmail.com

If you send any email or patch for this bug, please consider replying to the original thread. For the git send-email command to use, or tips on how to reply if the thread isn't in your mailbox, see the "Reply instructions" at https://lkml.kernel.org/r/0000000000000f7c8105873507b5@google.com