CVE-2021-4460

In the Linux kernel, the following vulnerability has been resolved: drm/amdkfd: Fix UBSAN shift-out-of-bounds warning If get_num_sdma_queues or get_num_xgmi_sdma_queues is 0, we end up doing a shift operation where the number of bits shifted equals number of bits in the operand. This behaviour is undefined. Set num_sdma_queues or num_xgmi_sdma_queues to ULLONG_MAX, if the count is >= number of bits in the operand. Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/1472

• ip6_vti: fix slab-use-after-free in decode_session6 {CVE-2023-53821}
• ACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer {CVE-2023-53395}
• wifi: mac80211_hwsim: drop short frames {CVE-2023-53321}
• ext4: add bounds checking in get_max_inline_xattr_value_size() {CVE-2023-53285}
• md/raid10: fix null-ptr-deref in raid10_sync_request {CVE-2023-53832}
• dm flakey: fix a crash with invalid table line {CVE-2023-53786}
• wifi: mt7601u: fix an integer underflow {CVE-2023-53679}
• ext4: fix bug_on in __es_tree_search caused by bad boot loader inode {CVE-2022-50638}
• USB: usbtmc: Fix direction for 0-length ioctl control messages {CVE-2023-53761}
• scsi: ses: Fix slab-out-of-bounds in ses_enclosure_data_process() {CVE-2023-53803}
• ALSA: usb-audio: Fix out-of-bounds read in snd_usb_get_audioformat_uac3() {CVE-2025-38249}
• md/raid1: Fix stack memory use after return in raid1_reshape {CVE-2025-38445}
• atm: clip: Fix infinite recursive call of clip_push(). {CVE-2025-38459}
• dm cache: free background tracker's queued work in {CVE-2023-53765}
• drm/amdkfd: Fix UBSAN shift-out-of-bounds warning {CVE-2021-4460}
• drm/vmwgfx: Validate the box size for the snooped cursor {CVE-2022-36280,CVE-2022-50440}
• vsock: Do not allow binding to VMADDR_PORT_ANY {CVE-2025-38618}
• ice: set tx_tstamps when creating new Tx rings via ethtool {CVE-2022-50710}
• media: dvb-frontends: avoid stack overflow warnings with clang {CVE-2024-27075}
• PCI/ASPM: Disable ASPM on MFD function removal to avoid use-after-free {CVE-2023-53446}
• cifs: Fix warning and UAF when destroy the MR list {CVE-2023-53427}
• sctp: fix a potential overflow in sctp_ifwdtsn_skip {CVE-2023-53372}
• md/raid10: check slab-out-of-bounds in md_bitmap_get_counter {CVE-2023-53357}
• lwt: Fix return values of BPF xmit ops {CVE-2023-53338}
• ubi: ensure that VID header offset + VID header size <= alloc, size {CVE-2023-53265}
• ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() {CVE-2022-50423}
• Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times {CVE-2022-50419}
• ACPICA: Fix error code path in acpi_ds_call_control_method() {CVE-2022-50411}
• ata: ahci: Match EM_MAX_SLOTS with SATA_PMP_MAX_PORTS {CVE-2022-50315}
• wifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write backtrace {CVE-2023-54286}

The SUSE Linux Enterprise 15 SP3 RT kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2022-49980: USB: gadget: fix use-after-free read in usb_udc_uevent() (bsc#1245110).
• CVE-2022-50233: Bluetooth: eir: Fix using strlen with hdev->{dev_name,short_name} (bsc#1246968).
• CVE-2022-50248: wifi: iwlwifi: mvm: fix double free on tx path (bsc#1249840).
• CVE-2022-50252: igb: Do not free q_vector unless new one was allocated (bsc#1249846).
• CVE-2022-50258: wifi: brcmfmac: Fix potential stack-out-of-bounds in brcmf_c_preinit_dcmds() (bsc#1249947).
• CVE-2022-50381: md: fix a crash in mempool_free (bsc#1250257).
• CVE-2022-50386: Bluetooth: L2CAP: Fix user-after-free (bsc#1250301).
• CVE-2022-50401: nfsd: under NFSv4.1, fix double svc_xprt_put on rpc_create failure (bsc#1250140).
• CVE-2022-50408: wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit() (bsc#1250391).
• CVE-2022-50409: net: If sock is dead do not access sock's sk_wq in sk_stream_wait_memory (bsc#1250392).
• CVE-2023-53178: mm: fix zswap writeback race condition (bsc#1249827).
• CVE-2023-53321: wifi: mac80211_hwsim: drop short frames (bsc#1250313).
• CVE-2023-53438: x86/MCE: Always save CS register on AMD Zen IF Poison errors (bsc#1250180).
• CVE-2025-21969: kABI workaround for l2cap_conn changes (bsc#1240784).
• CVE-2025-38184: tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer (bsc#1245956).
• CVE-2025-38488: smb: client: fix use-after-free in crypt_message when using async crypto (bsc#1247239).
• CVE-2025-38553: net/sched: Restrict conditions for adding duplicating netems to qdisc tree (bsc#1248255).
• CVE-2025-38572: ipv6: reject malicious packets in ipv6_gso_segment() (bsc#1248399).
• CVE-2025-38664: ice: Fix a null pointer dereference in ice_copy_and_init_pkg() (bsc#1248628).
• CVE-2025-38685: fbdev: Fix vmalloc out-of-bounds write in fast_imageblit (bsc#1249220).
• CVE-2025-38713: hfsplus: fix slab-out-of-bounds read in hfsplus_uni2asc() (bsc#1249200).
• CVE-2025-39751: ALSA: hda/ca0132: Fix buffer overflow in add_tuning_control (bsc#1249538).
• CVE-2025-39823: KVM: x86: use array_index_nospec with indices that come from guest (bsc#1250002).

The following non-security bugs were fixed:

• Limit patch filenames to 100 characters (bsc#1249604).
• Move pesign-obs-integration requirement from kernel-syms to kernel devel subpackage (bsc#1248108).
• hfsplus: fix slab-out-of-bounds read in hfsplus_uni2asc() (git-fixes).
• kernel-binary: Another installation ordering fix (bsc#1241353).
• kernel-source: Do not list mkspec and its inputs as sources (bsc#1250522).
• kernel-subpackage-build: Decompress ghost file when compressed version exists (bsc#1249346)
• kernel-syms.spec: Drop old rpm release number hack (bsc#1247172).
• rpm/kernel-subpackage-spec: Skip brp-strip-debug to avoid file truncation (bsc#1246879)
• rpm/mkspec: Fix missing kernel-syms-rt creation (bsc#1244337)
• rpm: Configure KABI checkingness macro (bsc#1249186)
• rpm: Drop support for kabi/arch/ignore-flavor (bsc#1249186)
• rpm: Link arch-symbols script from scripts directory.
• rpm: Link guards script from scripts directory.
• use uniform permission checks for all mount propagation changes (git-fixes).

The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various security bugfixes.

The following security bugs were fixed:

• CVE-2022-49980: USB: gadget: fix use-after-free read in usb_udc_uevent() (bsc#1245110).
• CVE-2022-50233: Bluetooth: eir: Fix using strlen with hdev->{dev_name,short_name} (bsc#1246968).
• CVE-2022-50248: wifi: iwlwifi: mvm: fix double free on tx path (bsc#1249840).
• CVE-2022-50252: igb: Do not free q_vector unless new one was allocated (bsc#1249846).
• CVE-2022-50258: wifi: brcmfmac: Fix potential stack-out-of-bounds in brcmf_c_preinit_dcmds() (bsc#1249947).
• CVE-2022-50381: md: fix a crash in mempool_free (bsc#1250257).
• CVE-2022-50386: Bluetooth: L2CAP: Fix user-after-free (bsc#1250301).
• CVE-2022-50401: nfsd: under NFSv4.1, fix double svc_xprt_put on rpc_create failure (bsc#1250140).
• CVE-2022-50408: wifi: brcmfmac: fix use-after-free bug in brcmf_netdev_start_xmit() (bsc#1250391).
• CVE-2022-50409: net: If sock is dead do not access sock's sk_wq in sk_stream_wait_memory (bsc#1250392).
• CVE-2022-50412: drm: bridge: adv7511: unregister cec i2c device after cec adapter (bsc#1250189).
• CVE-2023-53178: mm: fix zswap writeback race condition (bsc#1249827).
• CVE-2023-53220: media: az6007: Fix null-ptr-deref in az6007_i2c_xfer() (bsc#1250337).
• CVE-2023-53321: wifi: mac80211_hwsim: drop short frames (bsc#1250313).
• CVE-2023-53438: x86/MCE: Always save CS register on AMD Zen IF Poison errors (bsc#1250180).
• CVE-2024-53093: nvme-multipath: defer partition scanning (bsc#1233640).
• CVE-2025-21969: kABI workaround for l2cap_conn changes (bsc#1240784).
• CVE-2025-38011: drm/amdgpu: csa unmap use uninterruptible lock (bsc#1244729).
• CVE-2025-38184: tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer (bsc#1245956).
• CVE-2025-38216: iommu/vt-d: Restore context entry setup order for aliased devices (bsc#1245963).
• CVE-2025-38488: smb: client: fix use-after-free in crypt_message when using async crypto (bsc#1247239).
• CVE-2025-38553: net/sched: Restrict conditions for adding duplicating netems to qdisc tree (bsc#1248255).
• CVE-2025-38572: ipv6: reject malicious packets in ipv6_gso_segment() (bsc#1248399).
• CVE-2025-38664: ice: Fix a null pointer dereference in ice_copy_and_init_pkg() (bsc#1248628).
• CVE-2025-38685: fbdev: Fix vmalloc out-of-bounds write in fast_imageblit (bsc#1249220).
• CVE-2025-38713: hfsplus: fix slab-out-of-bounds read in hfsplus_uni2asc() (bsc#1249200).
• CVE-2025-39751: ALSA: hda/ca0132: Fix buffer overflow in add_tuning_control (bsc#1249538).
• CVE-2025-39823: KVM: x86: use array_index_nospec with indices that come from guest (bsc#1250002).

The following non-security bugs were fixed:

• Limit patch filenames to 100 characters (bsc#1249604).
• Move pesign-obs-integration requirement from kernel-syms to kernel devel subpackage (bsc#1248108).
• git_sort: Make tests independent of environment.
• hfsplus: fix slab-out-of-bounds read in hfsplus_uni2asc() (git-fixes).
• kernel-binary: Another installation ordering fix (bsc#1241353).
• kernel-source: Do not list mkspec and its inputs as sources (bsc#1250522).
• kernel-subpackage-build: Decompress ghost file when compressed version exists (bsc#1249346).
• kernel-syms.spec: Drop old rpm release number hack (bsc#1247172).
• rpm/kernel-subpackage-spec: Skip brp-strip-debug to avoid file truncation (bsc#1246879).
• rpm/mkspec: Fix missing kernel-syms-rt creation (bsc#1244337).
• rpm: Configure KABI checkingness macro (bsc#1249186).
• rpm: Drop support for kabi/arch/ignore-flavor (bsc#1249186).
• scripts/python/kss-dashboard: attempt getting smash data
• scripts/python/kss-dashboard: fetch into repos if stale
• scripts/python/kss-dashboard: implement CVSSv3.1 score consistency check
• scripts/python/kss-dashboard: prepare for the alternative CVE branch
• scripts/python/kss-dashboard: simplify control flow
• scripts/python/kss-dashboard: speed up patch checking a bit
• scripts/python/kss-dashboard: use…

The SUSE Linux Enterprise 12 SP5 kernel was updated to fix various security issues

The following security issues were fixed:

• CVE-2021-4460: drm/amdkfd: Fix UBSAN shift-out-of-bounds warning (bsc#1250764).
• CVE-2022-48631: ext4: fix bug in extents parsing when eh_entries == 0 and eh_depth > 0 (bsc#1223475).
• CVE-2022-50236: iommu/mediatek: Fix crash on isr after kexec() (bsc#1249702).
• CVE-2022-50249: memory: of: Fix refcount leak bug in of_get_ddr_timings() (bsc#1249747).
• CVE-2022-50280: pnode: terminate at peers of source (bsc#1249806).
• CVE-2022-50293: btrfs: do not BUG_ON() on ENOMEM when dropping extent items for a range (bsc#1249752).
• CVE-2022-50327: ACPI: processor: idle: Check acpi_fetch_acpi_dev() return value (bsc#1249859).
• CVE-2022-50350: scsi: target: iscsi: Fix a race condition between login_work and the login thread (bsc#1250261).
• CVE-2022-50356: net: sched: sfb: fix null pointer access issue when sfb_init() fails (bsc#1250040).
• CVE-2022-50367: fs: fix UAF/GPF bug in nilfs_mdt_destroy (bsc#1250277).
• CVE-2022-50394: i2c: ismt: Fix an out-of-bounds bug in ismt_access() (bsc#1250107).
• CVE-2022-50395: integrity: Fix memory leakage in keyring allocation error path (bsc#1250211).
• CVE-2022-50423: ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() (bsc#1250784).
• CVE-2022-50443: drm/rockchip: lvds: fix PM usage counter unbalance in poweron (bsc#1250768).
• CVE-2022-50459: scsi: iscsi: iscsi_tcp: Fix null-ptr-deref while calling getpeername() (bsc#1250850).
• CVE-2022-50481: cxl: fix possible null-ptr-deref in cxl_guest_init_afu|adapter() (bsc#1251051).
• CVE-2022-50485: ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode (bsc#1251197).
• CVE-2022-50505: iommu/amd: Fix pci device refcount leak in ppr_notifier() (bsc#1251086).
• CVE-2022-50516: fs: dlm: fix invalid derefence of sb_lvbptr (bsc#1251741).
• CVE-2022-50542: media: si470x: Fix use-after-free in si470x_int_in_callback() (bsc#1251330).
• CVE-2022-50571: btrfs: call __btrfs_remove_free_space_cache_locked on cache load failure (bsc#1252487).
• CVE-2023-53183: btrfs: exit gracefully if reloc roots don't match (bsc#1249863).
• CVE-2023-53185: wifi: ath9k: don't allow to overwrite ENDPOINT0 attributes (bsc#1249820).
• CVE-2023-53188: net: openvswitch: fix race on port output (bsc#1249854).
• CVE-2023-53191: irqchip/alpine-msi: Fix refcount leak in alpine_msix_init_domains (bsc#1249721).
• CVE-2023-53204: af_unix: Fix data-races around user->unix_inflight (bsc#1249682).
• CVE-2023-53271: ubi: Fix unreferenced object reported by kmemleak in ubi_resize_volume() (bsc#1249916).
• CVE-2023-53282: scsi: lpfc: Fix use-after-free KFENCE violation during sysfs firmware write (bsc#1250311).
• CVE-2023-53289: media: bdisp: Add missing check for create_workqueue (bsc#1249941).
• CVE-2023-53292: blk-mq: protect q->elevator by ->sysfs_lock in blk_mq_elv_switch_none (bsc#1250163).
• CVE-2023-53338: lwt: Fix return values of BPF xmit ops (bsc#1250074).
• CVE-2023-53339: btrfs: fix BUG_ON condition in btrfs_cancel_balance (bsc#1250329).
• CVE-2023-53373: crypto: seqiv - Handle EBUSY correctly (bsc#1250137).
• CVE-2023-53433: net: add vlan_get_protocol_and_depth() helper (bsc#1250164).
• CVE-2023-53476: iw_cxgb4: Fix potential NULL dereference in c4iw_fill_res_cm_id_entry() (bsc#1250839).
• CVE-2023-53477: ipv6: Add lwtunnel encap size of all siblings in nexthop calculation (bsc#1250840).
• CVE-2023-53484: lib: cpu_rmap: Avoid use after free on rmap->obj array entries (bsc#1250895).
• CVE-2023-53517: tipc: do not update mtu if msg_max is too small in mtu negotiation (bsc#1250919).
• CVE-2023-53519: media: v4l2-mem2mem: add lock to protect parameter num_rdy (bsc#1250964).
• CVE-2023-53540: wifi: cfg80211: reject auth/assoc to AP with our address (bsc#1251053).
• CVE-2023-53548: net: usbnet: Fix WARNING in usbnet_start_xmit/usb_submit_urb (bsc#1251066).
• CVE-2023-53556: iavf: Fix use-after-free in free_netdev (bsc#1251059). -…