Public bug reported:
SRU Justification
Impact:
The upstream process for stable tree updates is quite similar
in scope to the Ubuntu SRU process, e.g., each patch has to
demonstrably fix a bug, and each patch is vetted by upstream
by originating either directly from a mainline/stable Linux tree or
a minimally backported form of that patch. The following upstream
stable patches should be included in the Ubuntu kernel:
upstream stable patchset 2026-09-03
Ported from the following upstream stable releases:
v6.18.47, v6.18.48, v7.1.11, v7.1.12
from git://git.kernel.org/
xfs: add a xchk_ip_set_corrupt helper
xfs: rtsummary scrub should treat rtbitmap corruption errors as an xref error
xfs: hoist per-bucket unlinked list check to helper
xfs: don't livelock in scrub on a circular unlinked list
PCI: host-generic: Fix NULL pointer dereference on 32-bit CAM systems
Bluetooth: RFCOMM: take rfcomm_mutex for the deferred setup accept
iommu/tegra241-cmdqv: Fix CMD_SYNC use-after-free on teardown
iommu/iommufd: Fix NULL pointer deref in iommufd_ioas_change_process when
racing with iopt_map_file_pages
ALSA: FCP: Use a private URB for the notification endpoint
ALSA: scarlett2: Use a private URB for the notification endpoint
rndis_host: add overflow check in rndis_rx_fixup()
nvmet: fix NULL pointer dereference in nvmet_execute_identify_nslist()
io_uring/futex: don't mark futex wake requests as inflight
ALSA: dummy: Check card index validity at probe
io_uring/cmd: fix iovec leak when the async cmd is not recycled
io_uring/io-wq: fix worker accounting when canceling creation callbacks
io_uring/rsrc: fix folio size overflow in io_vec_fill_bvec()
io_uring/uring_cmd: don't skip completion for a synchronous multishot cmd
ocfs2: fix missing metadata reservation for large xattrs
kcov: fix data corruption and race conditions on PREEMPT_RT
ext4: stop retrying saturated xattr cache entries
nilfs2: reject invalid block index in GC ioctl
ext4: clear error before retrying inode xattr space fallback
ext4: avoid tail write_begin walk for uptodate folios
ext4: propagate errors from fast commit range replay
ext4: don't enable DAX on new encrypted files
ext4: fix incorrect function call when initializing s_resgid
xfs: validate attr entry pointer before field access
nfc: digital: clamp SENSF_RES length to the destination buffer
nfc: fdp: bound the device-reported read length and fix an skb leak
nfc: microread: validate target discovery payload lengths
nfc: llcp: bound the connect_sn TLV walk to the skb
nfc: llcp: fix OOB read and u8 offset wrap in TLV parsers
nfc: llcp: reject PDUs shorter than the LLCP header
nfc: pn533: purge fragmented skbs during cleanup
nfc: st21nfca: validate ATR_REQ length against the received frame
nfc: nci: add data_len bound checks to activation parameter extractors
nfc: nci: fix out-of-bounds write in nci_target_auto_activated()
nfc: nci: fix uninit-value in the RF discover/activated NTF handlers
nfc: nci: free destination parameters when closing a connection
drm/xe: Fix DPT allocation paths.
ipv4: reject undersized MTUs in ip_do_fragment()
ipv6: fix use-after-free in ip6_finish_output2()
mailbox: mchp-ipc-sbi: Add null check for devm_kasprintf()
dmaengine: fsl-edma: Add error handling for devm_kasprintf
nvmet-auth: zero the AUTH_RECEIVE response buffer
nvmet-fc: fix invalid free in LS IOD error path
nvmet-tcp: bound SGL data length before allocating command buffers
nvmet-tcp: Do not WARN on remotely-controlled oversized SGL allocations
nvmet: pci-epf: fix use-after-free in nvmet_pci_epf_exec_iod_work()
nvmet: pci-epf: put CQ ref on create_cq mapping failure
mptcp: pm: use for_each_subflow helper
mptcp: pm: rename add_entry structure to add_addr
mptcp: pm: uniform announced addresses helpers
mptcp: pm: fix memory leak from alloc-during-teardown race
HID: magicmouse: fix battery reporting for Bluetooth Magic Trackpad USB-C
HID: magicmouse: re-enable multitouch after reset-resume
HID: magicmouse: do not keep a stale msc->input if no input is claimed
HID: magicmouse: Prevent out-of-bounds (OOB) read during DOUBLE_REPORT_ID
HID: core: fix OOB read of field->usage in hid_set_field()
HID: pidff: fix OOB write when hid->inputs is empty
net/ionic: avoid OOB TX partner lookup for hwstamp RXQ
futex/pi: Reject cross-mm private futex owners
futex: Sanitize and document task_struct::futex::state transitions
futex/pi: Plug private futex exec() race
futex: Fix race on the initial mm->futex.phash.ref allocation
futex: Fix might_sleep() warning in futex_pivot_pending()
HID: nintendo: fix out-of-bounds read in joycon_ctlr_read_handler()
HID: nintendo: register input device after capabilities are set
HID: nintendo: stop device IO before hid_hw_stop on probe failure
HID: core: fix number/pointer type confusion on long items
HID: sensor: custom: Fix use-after-free in enable_sensor
HID: uclogic: fix use-after-free of inrange_timer on remove
HID: hyperv: validate initial device info bounds
Bluetooth: hci_event: fix LE list UAF on reset
Bluetooth: hci_event: validate LE Set CIG Parameters response
Bluetooth: hci_sync: Fix accept list UAF during suspend
Bluetooth: ISO: do not force BT_LISTEN after a failed BIG sync
Bluetooth: ISO: zero the sockaddr before returning it in getname
Bluetooth: MGMT: reject HCI_CMD_SYNC params_len above 255
Bluetooth: hci_aml: validate firmware segment lengths
futex: Avoid private hash use-after-free on final put
ptp: vmclock: prevent read-only mappings from becoming writable
inet: frags: strip GSO state from fragments before reassembly
io_uring/futex: only mark private futex waits as inflight
io_uring: switch struct io_ring_ctx internal bitfields to flags
io_uring: defer eventfd signaling when queued from a wakeup handler
xfs: restore nofs context unconditionally in xfs_trans_roll
fbdev: Wrap user-invoked calls to fb_set_var() in helper
fbdev: serialize mode sysfs access with lock_fb_info()
HID: magicmouse: prevent unbounded recursion in magicmouse_raw_event()
HID: asus: fix missing hid_is_usb() check
HID: rapoo: fix missing hid_is_usb() check
HID: ft260: fix stack-use-after-return write in I2C read race
HID: input: read battery capacity from its actual report offset
UBUNTU: Upstream stable to v6.18.47, v6.18.48, v7.1.11, v7.1.12
** Affects: linux (Ubuntu)
Importance: Undecided
Status: Invalid
** Affects: linux (Ubuntu Resolute)
Importance: Medium
Assignee: Alice C. Munduruca (cremfuelled)
Status: In Progress
** Tags: kernel-stable-tracking-bug
** Changed in: linux (Ubuntu)
Status: New => Confirmed
** Also affects: linux (Ubuntu Resolute)
Importance: Undecided
Status: New
** Changed in: linux (Ubuntu)
Status: Confirmed => Invalid
** Changed in: linux (Ubuntu Resolute)
Importance: Undecided => Medium
** Changed in: linux (Ubuntu Resolute)
Status: New => In Progress
** Changed in: linux (Ubuntu Resolute)
Assignee: (unassigned) => Alice C. Munduruca (cremfuelled)
** Description changed:
SRU Justification
Impact:
The upstream process for stable tree updates is quite similar
in scope to the Ubuntu SRU process, e.g., each patch has to
demonstrably fix a bug, and each patch is vetted by upstream
by originating either directly from a mainline/stable Linux tree or
a minimally backported form of that patch. The following upstream
stable patches should be included in the Ubuntu kernel:
upstream stable patchset 2026-09-03
+
+ Ported from the following upstream stable releases:
+ v6.18.47, v6.18.48, v7.1.11, v7.1.12
+
from git://git.kernel.org/
+
+ xfs: add a xchk_ip_set_corrupt helper
+ xfs: rtsummary scrub should treat rtbitmap corruption errors as an xref error
+ xfs: hoist per-bucket unlinked list check to helper
+ xfs: don't livelock in scrub on a circular unlinked list
+ PCI: host-generic: Fix NULL pointer dereference on 32-bit CAM systems
+ Bluetooth: RFCOMM: take rfcomm_mutex for the deferred setup accept
+ iommu/tegra241-cmdqv: Fix CMD_SYNC use-after-free on teardown
+ iommu/iommufd: Fix NULL pointer deref in iommufd_ioas_change_process when
racing with iopt_map_file_pages
+ ALSA: FCP: Use a private URB for the notification endpoint
+ ALSA: scarlett2: Use a private URB for the notification endpoint
+ rndis_host: add overflow check in rndis_rx_fixup()
+ nvmet: fix NULL pointer dereference in nvmet_execute_identify_nslist()
+ io_uring/futex: don't mark futex wake requests as inflight
+ ALSA: dummy: Check card index validity at probe
+ io_uring/cmd: fix iovec leak when the async cmd is not recycled
+ io_uring/io-wq: fix worker accounting when canceling creation callbacks
+ io_uring/rsrc: fix folio size overflow in io_vec_fill_bvec()
+ io_uring/uring_cmd: don't skip completion for a synchronous multishot cmd
+ ocfs2: fix missing metadata reservation for large xattrs
+ kcov: fix data corruption and race conditions on PREEMPT_RT
+ ext4: stop retrying saturated xattr cache entries
+ nilfs2: reject invalid block index in GC ioctl
+ ext4: clear error before retrying inode xattr space fallback
+ ext4: avoid tail write_begin walk for uptodate folios
+ ext4: propagate errors from fast commit range replay
+ ext4: don't enable DAX on new encrypted files
+ ext4: fix incorrect function call when initializing s_resgid
+ xfs: validate attr entry pointer before field access
+ nfc: digital: clamp SENSF_RES length to the destination buffer
+ nfc: fdp: bound the device-reported read length and fix an skb leak
+ nfc: microread: validate target discovery payload lengths
+ nfc: llcp: bound the connect_sn TLV walk to the skb
+ nfc: llcp: fix OOB read and u8 offset wrap in TLV parsers
+ nfc: llcp: reject PDUs shorter than the LLCP header
+ nfc: pn533: purge fragmented skbs during cleanup
+ nfc: st21nfca: validate ATR_REQ length against the received frame
+ nfc: nci: add data_len bound checks to activation parameter extractors
+ nfc: nci: fix out-of-bounds write in nci_target_auto_activated()
+ nfc: nci: fix uninit-value in the RF discover/activated NTF handlers
+ nfc: nci: free destination parameters when closing a connection
+ drm/xe: Fix DPT allocation paths.
+ ipv4: reject undersized MTUs in ip_do_fragment()
+ ipv6: fix use-after-free in ip6_finish_output2()
+ mailbox: mchp-ipc-sbi: Add null check for devm_kasprintf()
+ dmaengine: fsl-edma: Add error handling for devm_kasprintf
+ nvmet-auth: zero the AUTH_RECEIVE response buffer
+ nvmet-fc: fix invalid free in LS IOD error path
+ nvmet-tcp: bound SGL data length before allocating command buffers
+ nvmet-tcp: Do not WARN on remotely-controlled oversized SGL allocations
+ nvmet: pci-epf: fix use-after-free in nvmet_pci_epf_exec_iod_work()
+ nvmet: pci-epf: put CQ ref on create_cq mapping failure
+ mptcp: pm: use for_each_subflow helper
+ mptcp: pm: rename add_entry structure to add_addr
+ mptcp: pm: uniform announced addresses helpers
+ mptcp: pm: fix memory leak from alloc-during-teardown race
+ HID: magicmouse: fix battery reporting for Bluetooth Magic Trackpad USB-C
+ HID: magicmouse: re-enable multitouch after reset-resume
+ HID: magicmouse: do not keep a stale msc->input if no input is claimed
+ HID: magicmouse: Prevent out-of-bounds (OOB) read during DOUBLE_REPORT_ID
+ HID: core: fix OOB read of field->usage in hid_set_field()
+ HID: pidff: fix OOB write when hid->inputs is empty
+ net/ionic: avoid OOB TX partner lookup for hwstamp RXQ
+ futex/pi: Reject cross-mm private futex owners
+ futex: Sanitize and document task_struct::futex::state transitions
+ futex/pi: Plug private futex exec() race
+ futex: Fix race on the initial mm->futex.phash.ref allocation
+ futex: Fix might_sleep() warning in futex_pivot_pending()
+ HID: nintendo: fix out-of-bounds read in joycon_ctlr_read_handler()
+ HID: nintendo: register input device after capabilities are set
+ HID: nintendo: stop device IO before hid_hw_stop on probe failure
+ HID: core: fix number/pointer type confusion on long items
+ HID: sensor: custom: Fix use-after-free in enable_sensor
+ HID: uclogic: fix use-after-free of inrange_timer on remove
+ HID: hyperv: validate initial device info bounds
+ Bluetooth: hci_event: fix LE list UAF on reset
+ Bluetooth: hci_event: validate LE Set CIG Parameters response
+ Bluetooth: hci_sync: Fix accept list UAF during suspend
+ Bluetooth: ISO: do not force BT_LISTEN after a failed BIG sync
+ Bluetooth: ISO: zero the sockaddr before returning it in getname
+ Bluetooth: MGMT: reject HCI_CMD_SYNC params_len above 255
+ Bluetooth: hci_aml: validate firmware segment lengths
+ futex: Avoid private hash use-after-free on final put
+ ptp: vmclock: prevent read-only mappings from becoming writable
+ inet: frags: strip GSO state from fragments before reassembly
+ io_uring/futex: only mark private futex waits as inflight
+ io_uring: switch struct io_ring_ctx internal bitfields to flags
+ io_uring: defer eventfd signaling when queued from a wakeup handler
+ xfs: restore nofs context unconditionally in xfs_trans_roll
+ fbdev: Wrap user-invoked calls to fb_set_var() in helper
+ fbdev: serialize mode sysfs access with lock_fb_info()
+ HID: magicmouse: prevent unbounded recursion in magicmouse_raw_event()
+ HID: asus: fix missing hid_is_usb() check
+ HID: rapoo: fix missing hid_is_usb() check
+ HID: ft260: fix stack-use-after-return write in I2C read race
+ HID: input: read battery capacity from its actual report offset
+ UBUNTU: Upstream stable to v6.18.47, v6.18.48, v7.1.11, v7.1.12
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https://bugs.launchpad.net/bugs/2166363
Title:
Resolute update: upstream stable patchset 2026-09-03
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