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

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1:28 AM

[syzbot] [hfs?] memory leak in hfsplus_init_fs_context

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

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[syzbot] [hfs?] memory leak in hfsplus_init_fs_context

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

1:28 AM

syzbot, … Theodore Tso16

12:33 AM

[syzbot] [ext4?] WARNING in __folio_mark_dirty (3)

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

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[syzbot] [ext4?] WARNING in __folio_mark_dirty (3)

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

12:33 AM

12:04 AM

[syzbot] [ntfs3?] INFO: task hung in ntfs_fallocate

Hello, syzbot found the following issue on: HEAD commit: e69c7c175115 Merge tag '

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[syzbot] [ntfs3?] INFO: task hung in ntfs_fallocate

Hello, syzbot found the following issue on: HEAD commit: e69c7c175115 Merge tag '

12:04 AM

syzbot, Jens Axboe2

Dec 4

[syzbot] Monthly io-uring report (Dec 2025)

On 12/4/25 4:05 PM, syzbot wrote: > Hello io-uring maintainers/developers, > > This is a 31-

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[syzbot] Monthly io-uring report (Dec 2025)

On 12/4/25 4:05 PM, syzbot wrote: > Hello io-uring maintainers/developers, > > This is a 31-

Dec 4

Dec 4

Re: [PATCH v5 5/7] xfs: fill dirty folios on zero range of unwritten mappings

On Fri, Oct 03, 2025 at 09:46:39AM -0400, Brian Foster wrote: > Use the iomap folio batch

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Re: [PATCH v5 5/7] xfs: fill dirty folios on zero range of unwritten mappings

On Fri, Oct 03, 2025 at 09:46:39AM -0400, Brian Foster wrote: > Use the iomap folio batch

Dec 4

Dec 4

Re: [PATCH v8 13/15] iommu/amd: Use the generic iommu page table

Hi Alejandro Jimenez, Greetings! I used Syzkaller and found that there is WARNING in

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Re: [PATCH v8 13/15] iommu/amd: Use the generic iommu page table

Hi Alejandro Jimenez, Greetings! I used Syzkaller and found that there is WARNING in

Dec 4

syzbot, … Johannes Berg6

Dec 4

[syzbot] [net?] WARNING: suspicious RCU usage in dev_activate

Auto-closing this bug as obsolete. No recent activity, existing reproducers are no longer triggering

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[syzbot] [net?] WARNING: suspicious RCU usage in dev_activate

Auto-closing this bug as obsolete. No recent activity, existing reproducers are no longer triggering

Dec 4

Dec 4

[syzbot] [usb?] WARNING in ADDR_ctrl_msg/usb_submit_urb

Hello, syzbot found the following issue on: HEAD commit: e69c7c175115 Merge tag '

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[syzbot] [usb?] WARNING in ADDR_ctrl_msg/usb_submit_urb

Hello, syzbot found the following issue on: HEAD commit: e69c7c175115 Merge tag '

Dec 4

Dec 4

[syzbot] Monthly f2fs report (Dec 2025)

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

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[syzbot] Monthly f2fs report (Dec 2025)

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

Dec 4

Dec 4

[syzbot] Monthly ocfs2 report (Dec 2025)

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

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[syzbot] Monthly ocfs2 report (Dec 2025)

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

Dec 4

Dec 4

[syzbot] [jfs?] general protection fault in inode_cgwb_move_to_attached

Hello, syzbot found the following issue on: HEAD commit: 7d31f578f323 Add linux-next specific files

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[syzbot] [jfs?] general protection fault in inode_cgwb_move_to_attached

Hello, syzbot found the following issue on: HEAD commit: 7d31f578f323 Add linux-next specific files

Dec 4

syzbot, … Xin Long7

Dec 4

[syzbot] [fs?] kernel BUG in sctp_getsockopt_peeloff_common

On Mon, Dec 1, 2025 at 5:09 PM syzbot <syzbot+984a5c...@syzkaller.appspotmail.com>

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[syzbot] [fs?] kernel BUG in sctp_getsockopt_peeloff_common

On Mon, Dec 1, 2025 at 5:09 PM syzbot <syzbot+984a5c...@syzkaller.appspotmail.com>

Dec 4

syzbot, Charalampos Mitrodimas3

Dec 4

[syzbot] [usb?] WARNING in usb_start_wait_urb

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

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[syzbot] [usb?] WARNING in usb_start_wait_urb

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

Dec 4

syzbot, … Jan Kara16

Dec 4

[syzbot] [fs?] INFO: task hung in vfs_rename (2)

Auto-closing this bug as obsolete. No recent activity, existing reproducers are no longer triggering

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[syzbot] [fs?] INFO: task hung in vfs_rename (2)

Auto-closing this bug as obsolete. No recent activity, existing reproducers are no longer triggering

Dec 4

syzbot, … Keith Busch4

Dec 4

[syzbot] [block?] [udf?] memory leak in __blkdev_issue_zero_pages

On Thu, Dec 04, 2025 at 09:42:38PM +0530, shaurya wrote: > Move the fatal signal check before

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[syzbot] [block?] [udf?] memory leak in __blkdev_issue_zero_pages

On Thu, Dec 04, 2025 at 09:42:38PM +0530, shaurya wrote: > Move the fatal signal check before

Dec 4

Dec 4

[syzbot] [ocfs2?] memory leak in ocfs2_new_path_from_path

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

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[syzbot] [ocfs2?] memory leak in ocfs2_new_path_from_path

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

Dec 4

syzbot, shaurya3

Dec 4

[syzbot] [dri?] memory leak in drm_mode_atomic_ioctl

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

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[syzbot] [dri?] memory leak in drm_mode_atomic_ioctl

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

Dec 4

Dec 4

[syzbot] [wireless?] KASAN: slab-out-of-bounds Read in ieee80211_add_virtual_monitor

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

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[syzbot] [wireless?] KASAN: slab-out-of-bounds Read in ieee80211_add_virtual_monitor

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

Dec 4

syzbot, … Jan Kara7

Dec 4

[syzbot] [fs?] general protection fault in fd_install

On Thu 04-12-25 21:16:22, Edward Adam Davis wrote: > The ro variable, being of type bool, caused

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[syzbot] [fs?] general protection fault in fd_install

On Thu 04-12-25 21:16:22, Edward Adam Davis wrote: > The ro variable, being of type bool, caused

Dec 4

syzbot, … Mateusz Guzik11

Dec 4

[syzbot] [exfat?] [ocfs2?] kernel BUG in link_path_walk

On Thu, Dec 4, 2025 at 12:56 PM syzbot <syzbot+d222f4...@syzkaller.appspotmail.com>

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[syzbot] [exfat?] [ocfs2?] kernel BUG in link_path_walk

On Thu, Dec 4, 2025 at 12:56 PM syzbot <syzbot+d222f4...@syzkaller.appspotmail.com>

Dec 4

syzbot, … Edward Adam Davis8

Dec 4

[syzbot] [net?] KMSAN: uninit-value in lec_atm_send

syzbot found an uninitialized targetless variable. The user-provided data was only 28 bytes long, but

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[syzbot] [net?] KMSAN: uninit-value in lec_atm_send

syzbot found an uninitialized targetless variable. The user-provided data was only 28 bytes long, but

Dec 4

Dec 4

[PATCH v2 0/2] netrom: fix deadlock and refcount leak in nr_rt_device_down

When a device goes down, nr_rt_device_down() clears the routes that use this device. However, it

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[PATCH v2 0/2] netrom: fix deadlock and refcount leak in nr_rt_device_down

When a device goes down, nr_rt_device_down() clears the routes that use this device. However, it

Dec 4

alva Lan, syzbot2

Dec 4

[syzbot] test CVE-2025-38556 (extid=b63d677d63bcac06cf90) on linux-5.15.y

> #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git I see the command but

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[syzbot] test CVE-2025-38556 (extid=b63d677d63bcac06cf90) on linux-5.15.y

> #syz test: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git I see the command but

Dec 4

syzbot, … Junjie Cao12

Dec 3

[syzbot] [hams?] possible deadlock in nr_rt_ioctl (2)

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

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[syzbot] [hams?] possible deadlock in nr_rt_ioctl (2)

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

Dec 3

Dec 3

Re: CVE-2025-38556 in linux-5.15.y

> #syz test: This bug is already marked as fixed. No point in testing. > https://git.kernel.org

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Re: CVE-2025-38556 in linux-5.15.y

> #syz test: This bug is already marked as fixed. No point in testing. > https://git.kernel.org

Dec 3

syzbot, Dmitry Vyukov3

Dec 3

[syzbot] INFO: rcu detected stall in kernfs_fop_release

Auto-closing this bug as obsolete. No recent activity, existing reproducers are no longer triggering

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[syzbot] INFO: rcu detected stall in kernfs_fop_release

Auto-closing this bug as obsolete. No recent activity, existing reproducers are no longer triggering

Dec 3

syzbot, Edward Adam Davis3

Dec 3

[syzbot] [bluetooth?] KASAN: slab-use-after-free Write in hci_conn_drop (3)

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

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[syzbot] [bluetooth?] KASAN: slab-use-after-free Write in hci_conn_drop (3)

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

Dec 3

Dec 3

[syzbot] [block?] INFO: task hung in read_part_sector (2)

syzbot has found a reproducer for the following issue on: HEAD commit: 4de44542991e Merge git://git.

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[syzbot] [block?] INFO: task hung in read_part_sector (2)

syzbot has found a reproducer for the following issue on: HEAD commit: 4de44542991e Merge git://git.

Dec 3

syzbot, … Edward Adam Davis16

Dec 3

[syzbot] [kvm?] [net?] [virt?] WARNING in virtio_transport_send_pkt_info (2)

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

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[syzbot] [kvm?] [net?] [virt?] WARNING in virtio_transport_send_pkt_info (2)

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

Dec 3

syzbot, Chuck Lever3

Dec 3

[syzbot] [nfs?] INFO: task hung in nfsd_nl_version_set_doit (2)

On Mon, Dec 1, 2025, at 5:38 PM, syzbot wrote: > Hello, > > syzbot found the following issue

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[syzbot] [nfs?] INFO: task hung in nfsd_nl_version_set_doit (2)

On Mon, Dec 1, 2025, at 5:38 PM, syzbot wrote: > Hello, > > syzbot found the following issue

Dec 3

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