Reminder: 25 open syzbot bugs in kvm subsystem
From: Eric Biggers
Date: Mon Jun 24 2019 - 01:21:07 EST
[This email was generated by a script. Let me know if you have any suggestions
to make it better.]
Of the currently open syzbot reports against the upstream kernel, I've manually
marked 25 of them as possibly being bugs in the kvm 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 25 bugs, 4 were seen in mainline in the last week.
If you believe a bug is no longer valid, please close the syzbot report by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 kvm subsystem, please let me know,
and if possible forward the report to the correct people or mailing list.
Here are the bugs:
--------------------------------------------------------------------------------
Title: unexpected kernel reboot (3)
Last occurred: 0 days ago
Reported: 345 days ago
Branches: Mainline and others
Dashboard link: https://syzkaller.appspot.com/bug?id=321861b1588b44d064b779b92293c5d55cfe8430
Original thread: https://lkml.kernel.org/lkml/000000000000eb546f0570e84e90@xxxxxxxxxx/T/#u
This bug has a C reproducer.
The original thread for this bug received 2 replies; the last was 342 days ago.
If you fix this bug, please add the following tag to the commit:
Reported-by: syzbot+cce9ef2dd25246f815ee@xxxxxxxxxxxxxxxxxxxxxxxxx
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/000000000000eb546f0570e84e90@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: WARNING in kvm_arch_vcpu_ioctl_run (3)
Last occurred: 6 days ago
Reported: 452 days ago
Branches: Mainline and others
Dashboard link: https://syzkaller.appspot.com/bug?id=4d7de0e6a195b6a5ffef01d2776e737a52c7de60
Original thread: https://lkml.kernel.org/lkml/000000000000d05a78056873bc47@xxxxxxxxxx/T/#u
This bug has a C reproducer.
syzbot has bisected this bug, but I think the bisection result is incorrect.
The original thread for this bug received 1 reply, 452 days ago.
If you fix this bug, please add the following tag to the commit:
Reported-by: syzbot+760a73552f47a8cd0fd9@xxxxxxxxxxxxxxxxxxxxxxxxx
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/000000000000d05a78056873bc47@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: INFO: rcu detected stall in kvm_vcpu_ioctl
Last occurred: 6 days ago
Reported: 285 days ago
Branches: Mainline and others
Dashboard link: https://syzkaller.appspot.com/bug?id=ab7b91f104d7f018e85924d8d109ec7f895d8b61
Original thread: https://lkml.kernel.org/lkml/000000000000e0d794057592192b@xxxxxxxxxx/T/#u
This bug has a syzkaller reproducer only.
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+e9b1e8f574404b6e4ed3@xxxxxxxxxxxxxxxxxxxxxxxxx
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/000000000000e0d794057592192b@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: BUG: unable to handle kernel paging request in init_srcu_struct_fields
Last occurred: 0 days ago
Reported: 174 days ago
Branches: Mainline and others
Dashboard link: https://syzkaller.appspot.com/bug?id=213ca2ed63e07dd093373791a18f27ad08e91820
Original thread: https://lkml.kernel.org/lkml/00000000000023f74b057e4c0890@xxxxxxxxxx/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+010232b93d20ef8abde5@xxxxxxxxxxxxxxxxxxxxxxxxx
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/00000000000023f74b057e4c0890@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: KASAN: use-after-free Read in do_general_protection
Last occurred: 62 days ago
Reported: 393 days ago
Branches: Mainline
Dashboard link: https://syzkaller.appspot.com/bug?id=d5d780ebdea00d45e7dcca8b25d9d7d2aff7da6c
Original thread: https://lkml.kernel.org/lkml/0000000000006370c3056d1855e7@xxxxxxxxxx/T/#u
This bug has a C reproducer.
The original thread for this bug received 4 replies; the last was 368 days ago.
If you fix this bug, please add the following tag to the commit:
Reported-by: syzbot+a1264132fc103340628f@xxxxxxxxxxxxxxxxxxxxxxxxx
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/0000000000006370c3056d1855e7@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: KASAN: use-after-free Write in preempt_notifier_register (2)
Last occurred: 275 days ago
Reported: 316 days ago
Branches: Mainline and others
Dashboard link: https://syzkaller.appspot.com/bug?id=29b67450152e0c106ab336b5bf3ccd58a91ecc62
Original thread: https://lkml.kernel.org/lkml/000000000000dcf0c905732d9766@xxxxxxxxxx/T/#u
This bug has a C 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+d5d3b529a776503b24a2@xxxxxxxxxxxxxxxxxxxxxxxxx
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/000000000000dcf0c905732d9766@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: BUG: soft lockup in kvm_vm_ioctl
Last occurred: 57 days ago
Reported: 53 days ago
Branches: Mainline
Dashboard link: https://syzkaller.appspot.com/bug?id=60ff874c7b251129e028c90b5d4926c5b3fccbe2
Original thread: https://lkml.kernel.org/lkml/000000000000fb78720587d46fe9@xxxxxxxxxx/T/#u
This bug has a syzkaller reproducer only.
syzbot has bisected this bug, but I think the bisection result is incorrect.
The original thread for this bug has received 8 replies; the last was 45 days
ago.
If you fix this bug, please add the following tag to the commit:
Reported-by: syzbot+8d9bb6157e7b379f740e@xxxxxxxxxxxxxxxxxxxxxxxxx
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/000000000000fb78720587d46fe9@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: KMSAN: uninit-value in vmx_queue_exception
Last occurred: 110 days ago
Reported: 202 days ago
Branches: Mainline (with KMSAN patches)
Dashboard link: https://syzkaller.appspot.com/bug?id=50d43beb06a4fa9c4f118b91a40782190b7a24df
Original thread: https://lkml.kernel.org/lkml/000000000000ba5be2057c1e01fa@xxxxxxxxxx/T/#u
This bug has a C 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+788c6e0a154504bd4b99@xxxxxxxxxxxxxxxxxxxxxxxxx
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/000000000000ba5be2057c1e01fa@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: KASAN: use-after-free Read in kvm_write_guest_offset_cached
Last occurred: 201 days ago
Reported: 208 days ago
Branches: Mainline and others
Dashboard link: https://syzkaller.appspot.com/bug?id=afea9ed76a23a523078c90db91357c7f63019754
Original thread: https://lkml.kernel.org/lkml/000000000000ce78d7057b9e2ee1@xxxxxxxxxx/T/#u
This bug has a syzkaller reproducer only.
The original thread for this bug received 2 replies; the last was 208 days ago.
If you fix this bug, please add the following tag to the commit:
Reported-by: syzbot+ff40b9bc4835ea83211c@xxxxxxxxxxxxxxxxxxxxxxxxx
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/000000000000ce78d7057b9e2ee1@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: KASAN: use-after-free Read in __schedule (2)
Last occurred: 107 days ago
Reported: 325 days ago
Branches: Mainline
Dashboard link: https://syzkaller.appspot.com/bug?id=8f063539d4ecf1faf3132624b57a641e923ee25a
Original thread: https://lkml.kernel.org/lkml/0000000000000cc0de0572736043@xxxxxxxxxx/T/#u
This bug has a C 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+ceded3495a1d59f2d244@xxxxxxxxxxxxxxxxxxxxxxxxx
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/0000000000000cc0de0572736043@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: BUG: unable to handle kernel paging request in vmx_vcpu_run
Last occurred: 324 days ago
Reported: 438 days ago
Branches: Mainline and others
Dashboard link: https://syzkaller.appspot.com/bug?id=b67fcc95c0d84ea5424813a0d8703fc5c06de7ee
Original thread: https://lkml.kernel.org/lkml/001a113fe6c049450f05699315cb@xxxxxxxxxx/T/#u
This bug has a C 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+ef99b30646419e80cae3@xxxxxxxxxxxxxxxxxxxxxxxxx
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/001a113fe6c049450f05699315cb@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: BUG: soft lockup in kvm_vm_release
Last occurred: 130 days ago
Reported: 130 days ago
Branches: Mainline
Dashboard link: https://syzkaller.appspot.com/bug?id=eff432af8dea9e5e0d14acdae66b51ef49ccb5ee
Original thread: https://lkml.kernel.org/lkml/00000000000071be120581ca41ed@xxxxxxxxxx/T/#u
This bug has a syzkaller reproducer only.
syzbot has bisected this bug, but I think the bisection result is incorrect.
The original thread for this bug received 2 replies; the last was 89 days ago.
If you fix this bug, please add the following tag to the commit:
Reported-by: syzbot+6349a512c2938b2ad058@xxxxxxxxxxxxxxxxxxxxxxxxx
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/00000000000071be120581ca41ed@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: BUG: spinlock cpu recursion on CPU, syz-executor
Last occurred: 230 days ago
Reported: 229 days ago
Branches: Mainline
Dashboard link: https://syzkaller.appspot.com/bug?id=f01676cbfa1ad4601b3c7e31384ff0ba286eeb46
Original thread: https://lkml.kernel.org/lkml/000000000000645f00057a092b8c@xxxxxxxxxx/T/#u
This bug has a syzkaller reproducer only.
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+e9a3960298616a5a5abc@xxxxxxxxxxxxxxxxxxxxxxxxx
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/000000000000645f00057a092b8c@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: WARNING: kernel stack regs has bad value (2)
Last occurred: 331 days ago
Reported: 343 days ago
Branches: Mainline
Dashboard link: https://syzkaller.appspot.com/bug?id=0afc6db1b73dfa1659778cf6d03184bc5e4c2120
Original thread: https://lkml.kernel.org/lkml/00000000000063079a057109b225@xxxxxxxxxx/T/#u
This bug has a C 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+adcfacd9eff46da50187@xxxxxxxxxxxxxxxxxxxxxxxxx
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/00000000000063079a057109b225@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: general protection fault in __schedule (2)
Last occurred: 273 days ago
Reported: 317 days ago
Branches: Mainline and others
Dashboard link: https://syzkaller.appspot.com/bug?id=90cd06695bd4650a5228385b4b02f370ef9c219f
Original thread: https://lkml.kernel.org/lkml/000000000000e67a05057314ddf6@xxxxxxxxxx/T/#u
This bug has a C 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+7e2ab84953e4084a638d@xxxxxxxxxxxxxxxxxxxxxxxxx
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/000000000000e67a05057314ddf6@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: BUG: unable to handle kernel paging request in mmu_page_zap_pte
Last occurred: 112 days ago
Reported: 242 days ago
Branches: Mainline and others
Dashboard link: https://syzkaller.appspot.com/bug?id=9b2a57e149a6feaa03d7b21b17cff6d62f090ed4
Original thread: https://lkml.kernel.org/lkml/000000000000ba0e9c0578f7460f@xxxxxxxxxx/T/#u
This bug has a syzkaller reproducer only.
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+ba439f0471266afef763@xxxxxxxxxxxxxxxxxxxxxxxxx
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/000000000000ba0e9c0578f7460f@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: WARNING in mmu_spte_clear_track_bits (2)
Last occurred: 164 days ago
Reported: 176 days ago
Branches: Mainline and others
Dashboard link: https://syzkaller.appspot.com/bug?id=921b1c05b62b10255ce0107b9ac04a3528861d40
Original thread: https://lkml.kernel.org/lkml/0000000000006f735c057e312722@xxxxxxxxxx/T/#u
This bug has a C 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+9aaa207a0b90b704eeda@xxxxxxxxxxxxxxxxxxxxxxxxx
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/0000000000006f735c057e312722@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: general protection fault in kvm_pv_send_ipi
Last occurred: 199 days ago
Reported: 298 days ago
Branches: Mainline and others
Dashboard link: https://syzkaller.appspot.com/bug?id=f8d5004f6f749ecefaa2843e429848795cc2023f
Original thread: https://lkml.kernel.org/lkml/000000000000a819440574900515@xxxxxxxxxx/T/#u
This bug has a syzkaller reproducer only.
syzbot has bisected this bug, but I think the bisection result is incorrect.
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+86c0a866f80d88349f1f@xxxxxxxxxxxxxxxxxxxxxxxxx
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/000000000000a819440574900515@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: INFO: rcu detected stall in vcpu_enter_guest
Last occurred: 287 days ago
Reported: 413 days ago
Branches: Mainline
Dashboard link: https://syzkaller.appspot.com/bug?id=1fac0fd91219f3f2a03d6fa7deafc95fbed79cc2
Original thread: https://lkml.kernel.org/lkml/0000000000002b8fac056b863655@xxxxxxxxxx/T/#u
This bug has a syzkaller reproducer only.
The original thread for this bug received 1 reply, 413 days ago.
If you fix this bug, please add the following tag to the commit:
Reported-by: syzbot+f58b8603b48434ef07d3@xxxxxxxxxxxxxxxxxxxxxxxxx
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/0000000000002b8fac056b863655@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: WARNING in x86_emulate_insn
Last occurred: 519 days ago
Reported: 565 days ago
Branches: Mainline and others
Dashboard link: https://syzkaller.appspot.com/bug?id=c71f503ed91564f669d67ea159101451973968ef
Original thread: https://lkml.kernel.org/lkml/001a1143d526c5b1aa055f9d604c@xxxxxxxxxx/T/#u
This bug has a C reproducer.
The original thread for this bug received 14 replies; the last was 558 days ago.
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/001a1143d526c5b1aa055f9d604c@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: BUG: unable to handle kernel paging request in __kvm_mmu_prepare_zap_page
Last occurred: 107 days ago
Reported: 118 days ago
Branches: linux-next
Dashboard link: https://syzkaller.appspot.com/bug?id=341c5e4453a8c9943babf25c9d32ff11f81c805c
Original thread: https://lkml.kernel.org/lkml/00000000000062c2f60582b90e7d@xxxxxxxxxx/T/#u
This bug has a syzkaller reproducer only.
The original thread for this bug received 1 reply, 118 days ago.
If you fix this bug, please add the following tag to the commit:
Reported-by: syzbot+222746e0104bbb617d51@xxxxxxxxxxxxxxxxxxxxxxxxx
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/00000000000062c2f60582b90e7d@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: WARNING in _cleanup_srcu_struct
Last occurred: 154 days ago
Reported: 167 days ago
Branches: Mainline
Dashboard link: https://syzkaller.appspot.com/bug?id=91cf59ba0ce7dd171877f2ec35d53e5e661033ba
Original thread: https://lkml.kernel.org/lkml/00000000000015955c057edb3905@xxxxxxxxxx/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+5a1bbe3f318ef61ece61@xxxxxxxxxxxxxxxxxxxxxxxxx
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/00000000000015955c057edb3905@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: WARNING in kvm_set_tsc_khz
Last occurred: 319 days ago
Reported: 316 days ago
Branches: linux-next
Dashboard link: https://syzkaller.appspot.com/bug?id=0b7ea1ad0e2fa94a69f950c44da50bfe99298d1d
Original thread: https://lkml.kernel.org/lkml/0000000000007fc64805732b7f38@xxxxxxxxxx/T/#u
This bug has a C 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+c03f30b4f4c46bdf8575@xxxxxxxxxxxxxxxxxxxxxxxxx
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/0000000000007fc64805732b7f38@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: WARNING: kernel stack regs has bad 'bp' value (4)
Last occurred: 118 days ago
Reported: 342 days ago
Branches: Mainline and others
Dashboard link: https://syzkaller.appspot.com/bug?id=f2be2d01521281be5055a39ed0cbdbfce0d31e30
Original thread: https://lkml.kernel.org/lkml/0000000000000696430571197fe9@xxxxxxxxxx/T/#u
Unfortunately, this bug does not have a reproducer.
The original thread for this bug received 1 reply, 342 days ago.
If you fix this bug, please add the following tag to the commit:
Reported-by: syzbot+f337218531b644bdeb70@xxxxxxxxxxxxxxxxxxxxxxxxx
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/0000000000000696430571197fe9@xxxxxxxxxx
--------------------------------------------------------------------------------
Title: kernel BUG at arch/x86/kvm/x86.c:LINE! (3)
Last occurred: 107 days ago
Reported: 107 days ago
Branches: linux-next
Dashboard link: https://syzkaller.appspot.com/bug?id=913a2603278d2a0656f8112cc9c229241d68fea9
Original thread: https://lkml.kernel.org/lkml/0000000000008adf52058398fa93@xxxxxxxxxx/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+83a3e122f8c1b25b3111@xxxxxxxxxxxxxxxxxxxxxxxxx
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/0000000000008adf52058398fa93@xxxxxxxxxx