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Linux kernel bugs found with syzkaller fuzzer and reported automatically by syzbot.

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Krystian Kaniewski, … Jason Gunthorpe6

12:30 PM

[PATCH net v3] RDMA/core: Reject unregistering netdevs in ib_get_eth_speed

On Tue, Aug 11, 2026 at 11:21:19AM +0200, Krystian Kaniewski wrote: > Thanks for your comments.

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[PATCH net v3] RDMA/core: Reject unregistering netdevs in ib_get_eth_speed

On Tue, Aug 11, 2026 at 11:21:19AM +0200, Krystian Kaniewski wrote: > Thanks for your comments.

12:30 PM

syzbot, Vasileios Almpanis3

12:26 PM

[syzbot] [usb?] WARNING: kobject bug in pch_udc_remove

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

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[syzbot] [usb?] WARNING: kobject bug in pch_udc_remove

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

12:26 PM

syzbot, … Aleksandr Nogikh8

11:14 AM

Re: [syzbot] [kvm-x86?] [kvm?] WARNING: locking bug in kvm_xen_set_evtchn_fast

Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: WARNING:

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Re: [syzbot] [kvm-x86?] [kvm?] WARNING: locking bug in kvm_xen_set_evtchn_fast

Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: WARNING:

11:14 AM

syzbot, Bartosz Chronowski4

10:48 AM

Re: [syzbot] [tipc?] BUG: soft lockup in do_sock_setsockopt

Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by

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Re: [syzbot] [tipc?] BUG: soft lockup in do_sock_setsockopt

Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by

10:48 AM

syzbot, Vasileios Almpanis4

10:17 AM

[syzbot] [io-uring?] [block?] memory leak in io_submit_sqes (6)

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

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[syzbot] [io-uring?] [block?] memory leak in io_submit_sqes (6)

#syz test: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git

10:17 AM

syzbot, … Paolo Abeni10

10:13 AM

[syzbot] [net?] WARNING in ipgre_xmit (2)

On 8/11/26 3:13 PM, Jason Xing wrote: > On Mon, Aug 10, 2026 at 6:54 PM Paolo Abeni <pabeni@

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[syzbot] [net?] WARNING in ipgre_xmit (2)

On 8/11/26 3:13 PM, Jason Xing wrote: > On Mon, Aug 10, 2026 at 6:54 PM Paolo Abeni <pabeni@

10:13 AM

10:09 AM

[syzbot] [input?] KASAN: slab-use-after-free Read in input_dev_uevent (2)

Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by

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[syzbot] [input?] KASAN: slab-use-after-free Read in input_dev_uevent (2)

Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by

10:09 AM

syzbot, … Jason Gunthorpe7

9:49 AM

[syzbot] [iommu?] KASAN: slab-use-after-free Read in free_iova

On Tue, Aug 11, 2026 at 10:48:05AM +0100, Will Deacon wrote: > On Mon, Aug 10, 2026 at 02:32:30PM

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[syzbot] [iommu?] KASAN: slab-use-after-free Read in free_iova

On Tue, Aug 11, 2026 at 10:48:05AM +0100, Will Deacon wrote: > On Mon, Aug 10, 2026 at 02:32:30PM

9:49 AM

David Woodhouse6

9:47 AM

[PATCH v4 0/6] KVM: x86/xen: Fix Xen/GPC/PREEMPT_RT issues with rwlock_t

On Tue, 2026-08-11 at 13:49 +0100, David Woodhouse wrote: > From: Sean Christopherson <seanjc@

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[PATCH v4 0/6] KVM: x86/xen: Fix Xen/GPC/PREEMPT_RT issues with rwlock_t

On Tue, 2026-08-11 at 13:49 +0100, David Woodhouse wrote: > From: Sean Christopherson <seanjc@

9:47 AM

9:46 AM

[syzbot] [kernel?] INFO: task hung in copy_ipcs

Hello, syzbot tried to test the proposed patch but the build/boot failed: T1] pci 0000:00:00.0:

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[syzbot] [kernel?] INFO: task hung in copy_ipcs

Hello, syzbot tried to test the proposed patch but the build/boot failed: T1] pci 0000:00:00.0:

9:46 AM

9:43 AM

[syzbot] [bridge?] INFO: rcu detected stall in br_handle_frame (6)

For archival purposes, forwarding an incoming command email to linux-...@vger.kernel.org,

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[syzbot] [bridge?] INFO: rcu detected stall in br_handle_frame (6)

For archival purposes, forwarding an incoming command email to linux-...@vger.kernel.org,

9:43 AM

9:42 AM

[syzbot] [kernfs?] [mm?] INFO: rcu detected stall in kernfs_fop_open (7)

For archival purposes, forwarding an incoming command email to linux-...@vger.kernel.org,

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[syzbot] [kernfs?] [mm?] INFO: rcu detected stall in kernfs_fop_open (7)

For archival purposes, forwarding an incoming command email to linux-...@vger.kernel.org,

9:42 AM

syzbot, Edward Adam Davis3

9:32 AM

[syzbot] [kernel?] memory leak in dev_set_name

Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: memory

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[syzbot] [kernel?] memory leak in dev_set_name

Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: memory

9:32 AM

David Woodhouse

9:22 AM

[PATCH v4 3/6] KVM: x86/xen: Explicitly tag "shared info" page as never being dirty tracked

From: Sean Christopherson <sea...@google.com> Explicitly mark the Xen shared info page as never

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[PATCH v4 3/6] KVM: x86/xen: Explicitly tag "shared info" page as never being dirty tracked

From: Sean Christopherson <sea...@google.com> Explicitly mark the Xen shared info page as never

9:22 AM

David Woodhouse

9:22 AM

[PATCH v4 6/6] KVM: x86: Use gfn_to_pfn_cache for steal time / preempted status

From: Carsten Stollmaier <sto...@amazon.com> This largely reverts commit 7e2175ebd695 ("

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[PATCH v4 6/6] KVM: x86: Use gfn_to_pfn_cache for steal time / preempted status

From: Carsten Stollmaier <sto...@amazon.com> This largely reverts commit 7e2175ebd695 ("

9:22 AM

syzbot, … Liam R. Howlett12

9:11 AM

[syzbot] [mm?] INFO: rcu detected stall in sys_munmap (2)

For archival purposes, forwarding an incoming command email to linux-...@vger.kernel.org,

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[syzbot] [mm?] INFO: rcu detected stall in sys_munmap (2)

For archival purposes, forwarding an incoming command email to linux-...@vger.kernel.org,

9:11 AM

syzbot, … Aleksandr Nogikh5

9:07 AM

[PATCH] usbip: fix use-after-free in event_handler()

On Mon, Aug 10, 2026 at 9:33 PM Shuah Khan <sk...@linuxfoundation.org> wrote: > < ...

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[PATCH] usbip: fix use-after-free in event_handler()

On Mon, Aug 10, 2026 at 9:33 PM Shuah Khan <sk...@linuxfoundation.org> wrote: > < ...

9:07 AM

8:32 AM

[syzbot] Monthly f2fs report (Aug 2026)

Hello f2fs maintainers/developers, This is a 31-day syzbot report for the f2fs subsystem. All related

unread,

[syzbot] Monthly f2fs report (Aug 2026)

Hello f2fs maintainers/developers, This is a 31-day syzbot report for the f2fs subsystem. All related

8:32 AM

8:32 AM

[syzbot] Monthly ocfs2 report (Aug 2026)

Hello ocfs2 maintainers/developers, This is a 31-day syzbot report for the ocfs2 subsystem. All

unread,

[syzbot] Monthly ocfs2 report (Aug 2026)

Hello ocfs2 maintainers/developers, This is a 31-day syzbot report for the ocfs2 subsystem. All

8:32 AM

syzbot, … Aleksandr Nogikh4

7:41 AM

[syzbot] [jfs?] [xfs?] [bcachefs?] INFO: task hung in sb_start_write (2)

On Tue, Aug 11, 2026 at 1:21 PM 'Christian Brauner' via syzkaller-bugs <syzkaller-bugs@

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[syzbot] [jfs?] [xfs?] [bcachefs?] INFO: task hung in sb_start_write (2)

On Tue, Aug 11, 2026 at 1:21 PM 'Christian Brauner' via syzkaller-bugs <syzkaller-bugs@

7:41 AM

syzbot, … David Woodhouse13

7:24 AM

[syzbot] [kvm?] WARNING: locking bug in kvm_xen_set_evtchn_fast

For archival purposes, forwarding an incoming command email to linux-...@vger.kernel.org,

unread,

[syzbot] [kvm?] WARNING: locking bug in kvm_xen_set_evtchn_fast

For archival purposes, forwarding an incoming command email to linux-...@vger.kernel.org,

7:24 AM

syzbot, David Woodhouse4

6:36 AM

[syzbot] [kvm?] [kvm-x86?] BUG: sleeping function called from invalid context in kvm_xen_set_evtchn_fast

This should be fixed by the SRCU conversion of the gfn_to_pfn_cache locking, which removes the rwlock

unread,

[syzbot] [kvm?] [kvm-x86?] BUG: sleeping function called from invalid context in kvm_xen_set_evtchn_fast

This should be fixed by the SRCU conversion of the gfn_to_pfn_cache locking, which removes the rwlock

6:36 AM

6:19 AM

[syzbot] [usb?] general protection fault in uvcg_video_enable

syzbot has found a reproducer for the following issue on: HEAD commit: d58772d8520c Merge tag '

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[syzbot] [usb?] general protection fault in uvcg_video_enable

syzbot has found a reproducer for the following issue on: HEAD commit: d58772d8520c Merge tag '

6:19 AM

Karl Mehltretter

5:58 AM

[PATCH] irqchip/gic-v3-its: Don't WARN on LPI free allocation failure

free_lpi_range() cannot give LPIs back to the allocator without allocating a struct lpi_range to

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[PATCH] irqchip/gic-v3-its: Don't WARN on LPI free allocation failure

free_lpi_range() cannot give LPIs back to the allocator without allocating a struct lpi_range to

5:58 AM

David Woodhouse5

5:52 AM

[PATCH v2 00/11] KVM: x86/xen: Clean up shared info / vcpu info handling

From: David Woodhouse <dw...@amazon.co.uk> kvm_xen_schedop_poll() validates port numbers against

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[PATCH v2 00/11] KVM: x86/xen: Clean up shared info / vcpu info handling

From: David Woodhouse <dw...@amazon.co.uk> kvm_xen_schedop_poll() validates port numbers against

5:52 AM

David Woodhouse

5:51 AM

[PATCH v2 04/11] KVM: x86/xen: Latch shinfo mode in kvm_xen_set_evtchn_fast()

From: Hyunwoo Kim <imv...@gmail.com> kvm_xen_set_evtchn_fast() assumes the port range check in

unread,

[PATCH v2 04/11] KVM: x86/xen: Latch shinfo mode in kvm_xen_set_evtchn_fast()

From: Hyunwoo Kim <imv...@gmail.com> kvm_xen_set_evtchn_fast() assumes the port range check in

5:51 AM

David Woodhouse

5:51 AM

[PATCH v2 06/11] KVM: x86/xen: Enforce 4-byte alignment of vcpu_info registration

From: David Woodhouse <dw...@amazon.co.uk> Xen's map_guest_area() enforces that vcpu_info is

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[PATCH v2 06/11] KVM: x86/xen: Enforce 4-byte alignment of vcpu_info registration

From: David Woodhouse <dw...@amazon.co.uk> Xen's map_guest_area() enforces that vcpu_info is

5:51 AM

David Woodhouse

5:48 AM

[PATCH v2 08/11] KVM: x86/xen: Use 32-bit atomics if vCPU's evtchn_pending_sel isn't aligned

From: Sean Christopherson <sea...@google.com> When propagating pending Xen events from

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[PATCH v2 08/11] KVM: x86/xen: Use 32-bit atomics if vCPU's evtchn_pending_sel isn't aligned

From: Sean Christopherson <sea...@google.com> When propagating pending Xen events from

5:48 AM

David Woodhouse

5:48 AM

[PATCH v2 01/11] KVM: x86/xen: Rename 'longmode' to 'is_64bit' in hypercall handling

From: David Woodhouse <dw...@amazon.co.uk> Rename the local 'longmode' variable and

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[PATCH v2 01/11] KVM: x86/xen: Rename 'longmode' to 'is_64bit' in hypercall handling

From: David Woodhouse <dw...@amazon.co.uk> Rename the local 'longmode' variable and

5:48 AM

David Woodhouse

5:48 AM

[PATCH v2 11/11] KVM: pfncache: use a dedicated invalidation sequence for cache refresh

From: David Woodhouse <dw...@amazon.co.uk> The gfn_to_pfn_cache refresh path guards against mmu

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[PATCH v2 11/11] KVM: pfncache: use a dedicated invalidation sequence for cache refresh

From: David Woodhouse <dw...@amazon.co.uk> The gfn_to_pfn_cache refresh path guards against mmu

5:48 AM

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