CVE-2023-53376

In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Use number of bits to manage bitmap sizes To allocate bitmaps, the mpi3mr driver calculates sizes of bitmaps using byte as unit. However, bitmap helper functions assume that bitmaps are allocated using unsigned long as unit. This gap causes memory access beyond the bitmap sizes and results in "BUG: KASAN: slab-out-of-bounds". The BUG was observed at firmware download to eHBA-9600. Call trace indicated that the out-of-bounds access happened in find_first_zero_bit() called from mpi3mr_send_event_ack() for miroc->evtack_cmds_bitmap. To fix the BUG, do not use bytes to manage bitmap sizes. Instead, use number of bits, and call bitmap helper functions which take number of bits as arguments. For memory allocation, call bitmap_zalloc() instead of kzalloc() and krealloc(). For memory free, call bitmap_free() instead of kfree(). For zero clear, call bitmap_clear() instead of memset(). Remove three fields for bitmap byte sizes in struct scmd_priv which are no longer required. Replace the field dev_handle_bitmap_sz with dev_handle_bitmap_bits to keep number of bits of removepend_bitmap across resize.

In the Linux kernel, the following vulnerability has been resolved: scsi: mpi3mr: Use number of bits to manage bitmap sizes To allocate bitmaps, the mpi3mr driver calculates sizes of bitmaps using byte as unit. However, bitmap helper functions assume that bitmaps are allocated using unsigned long as unit. This gap causes memory access beyond the bitmap sizes and results in "BUG: KASAN: slab-out-of-bounds". The BUG was observed at firmware download to eHBA-9600. Call trace indicated that the out-of-bounds access happened in find_first_zero_bit() called from mpi3mr_send_event_ack() for miroc->evtack_cmds_bitmap. To fix the BUG, do not use bytes to manage bitmap sizes. Instead, use number of bits, and call bitmap helper functions which take number of bits as arguments. For memory allocation, call bitmap_zalloc() instead of kzalloc() and krealloc(). For memory free, call bitmap_free() instead of kfree(). For zero clear, call bitmap_clear() instead of memset(). Remove three fields for bitmap byte sizes in struct scmd_priv which are no longer required. Replace the field dev_handle_bitmap_sz with dev_handle_bitmap_bits to keep number of bits of removepend_bitmap across resize.

In the Linux kernel, the following vulnerability has been resolved:

scsi: mpi3mr: Use number of bits to manage bitmap sizes

To allocate bitmaps, the mpi3mr driver calculates sizes of bitmaps using byte as unit. However, bitmap helper functions assume that bitmaps are allocated using unsigned long as unit. This gap causes memory access beyond the bitmap sizes and results in "BUG: KASAN: slab-out-of-bounds". The BUG was observed at firmware download to eHBA-9600. Call trace indicated that the out-of-bounds access happened in find_first_zero_bit() called from mpi3mr_send_event_ack() for miroc->evtack_cmds_bitmap.

To fix the BUG, do not use bytes to manage bitmap sizes. Instead, use number of bits, and call bitmap helper functions which take number of bits as arguments. For memory allocation, call bitmap_zalloc() instead of kzalloc() and krealloc(). For memory free, call bitmap_free() instead of kfree(). For zero clear, call bitmap_clear() instead of memset().

Remove three fields for bitmap byte sizes in struct scmd_priv which are no longer required. Replace the field dev_handle_bitmap_sz with dev_handle_bitmap_bits to keep number of bits of removepend_bitmap across resize.

• locking/ww_mutex/test: Fix potential workqueue corruption {CVE-2023-52836}
• netfilter: ipset: Fix suspicious rcu_dereference_protected() {CVE-2024-40993}
• netfilter: ipset: Fix race between namespace cleanup and gc in the list:set type {CVE-2024-39503}
• netfilter: ipset: Missing gc cancellations fixed {CVE-2024-39503}
• netfilter: ipset: Add list flush to cancel_gc {CVE-2024-39503}
• netfilter: ipset: fix performance regression in swap operation {CVE-2024-26910}
• netfilter: ipset: fix race condition between swap/destroy and kernel side add/del/test {CVE-2024-26910}
• scsi: ses: Fix slab-out-of-bounds in ses_intf_remove() {CVE-2023-53521}
• scsi: mpt3sas: Fix a memory leak {CVE-2023-53512}
• scsi: iscsi_tcp: Check that sock is valid before iscsi_set_param() {CVE-2023-53464}
• wifi: ath11k: fix deinitialization of firmware resources {CVE-2023-53532}
• mt76: mt7915: Fix PCI device refcount leak in mt7915_pci_init_hif2() {CVE-2022-50464}
• ionic: catch failure from devlink_alloc {CVE-2023-53470}
• enic: Validate length of nl attributes in enic_set_vf_port {CVE-2024-38659}
• gpiolib: cdev: fix uninitialised kfifo {CVE-2024-36898}
• Bluetooth: hci_conn: Fix crash on hci_create_cis_sync {CVE-2022-50447}
• net/sched: taprio: always validate TCA_TAPRIO_ATTR_PRIOMAP {CVE-2024-36974}
• ext4: Fix function prototype mismatch for ext4_feat_ktype {CVE-2023-53224}
• ipv6: Add lwtunnel encap size of all siblings in nexthop calculation {CVE-2023-53477}
• netfilter: nf_tables: prefer nft_chain_validate {CVE-2024-41042}
• netfilter: nf_conntrack: fix crash due to removal of uninitialised entry {CVE-2025-38472}
• Bluetooth: qca: add missing firmware sanity checks {CVE-2024-36880}
• Bluetooth: qca: fix info leak when fetching fw build id {CVE-2024-36032}
• Bluetooth: L2CAP: fix "bad unlock balance" in l2cap_disconnect_rsp {CVE-2023-53297}
• drm/amd/display: Skip finding free audio for unknown engine_id {CVE-2024-42119}
• drm/dp_mst: Fix resetting msg rx state after topology removal {CVE-2024-57876}
• drm/vc4: don't check if plane->state->fb == state->fb {CVE-2024-35932}
• drm/nouveau/disp: fix use-after-free in error handling of nouveau_connector_create {CVE-2023-53263}
• cifs: fix oops during encryption {CVE-2022-50341}
• smb: client: fix use-after-free in cifs_oplock_break {CVE-2025-38527}
• smb: client: fix race with concurrent opens in rename(2) {CVE-2025-39825}
• ASoC: Intel: sof_sdw_rt_sdca_jack_common: ctx->headset_codec_dev = NULL {CVE-2023-52697}
• blk-mq: fix NULL dereference on q->elevator in blk_mq_elv_switch_none {CVE-2023-53292}
• mlx5: fix possible ptp queue fifo use-after-free {CVE-2023-53398}
• sctp: check send stream number after wait_for_sndbuf {CVE-2023-53296}
• sctp: linearize cloned gso packets in sctp_rcv {CVE-2025-38718}
• ip6mr: Fix skb_under_panic in ip6mr_cache_report() {CVE-2023-53365}
• scsi: mpi3mr: Use number of bits to manage bitmap sizes {CVE-2023-53376}
• scsi: qla2xxx: Remove unused nvme_ls_waitq wait queue {CVE-2023-53280}
• mt76: mt7921: fix kernel panic by accessing unallocated eeprom.data {CVE-2023-53232}
• wifi: ath9k: don't allow to overwrite ENDPOINT0 attributes {CVE-2023-53185}
• fbdev: Fix invalid page access after closing deferred I/O devices {CVE-2023-52731}
• ACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer {CVE-2023-53395}
• ACPI: processor: idle: Check acpi_fetch_acpi_dev() return value {CVE-2022-50327}
• media: az6007: Fix null-ptr-deref in az6007_i2c_xfer() {CVE-2023-53220}
• media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer() {CVE-2022-50272}

• crypto: algif_aead - Fix minimum RX size check for decryption
• crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl
• crypto: authencesn - Fix src offset when decrypting in-place
• crypto: authencesn - Do not place hiseq at end of dst for out-of-place decryption
• crypto: authenc - use memcpy_sglist() instead of null skcipher
• crypto: algif_aead - snapshot IV for async AEAD requests
• crypto: algif_aead - Revert to operating out-of-place
• crypto: algif_aead - use memcpy_sglist() instead of null skcipher
• crypto: scatterwalk - Backport memcpy_sglist()
• crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec
• macvlan: fix possible UAF in macvlan_forward_source() {CVE-2026-23001}
• tls: Use __sk_dst_get() and dst_dev_rcu() in get_netdev_for_sock(). {CVE-2025-40149}
• bpf, cpumap: Make sure kthread is running before map update returns {CVE-2023-53577}
• net: qrtr: Fix an uninit variable access bug in qrtr_tx_resume() {CVE-2023-53578}
• migrate: correct lock ordering for hugetlb file folios {CVE-2026-23097}
• net/sched: sch_hfsc: upgrade 'rt' to 'sc' when it becomes a inner curve {CVE-2023-4623}
• e1000e: fix heap overflow in e1000_set_eeprom {CVE-2025-39898}
• ALSA: hda/ca0132: Fix buffer overflow in add_tuning_control {CVE-2025-39751}
• md/raid10: fix null-ptr-deref of mreplace in raid10_sync_request {CVE-2023-53380}
• HID: usbhid: Eliminate recurrent out-of-bounds bug in usbhid_parse() {CVE-2025-38103}
• tls: separate no-async decryption request handling from async {CVE-2024-58240}
• ftrace: Also allocate and copy hash for reading of filter files {CVE-2025-39689}
• HID: uclogic: Correct devm device reference for hidinput input_dev name {CVE-2023-54207}
• ipv6: BUG() in pskb_expand_head() as part of calipso_skbuff_setattr() {CVE-2025-71085}
• ALSA: usb-audio: Fix use-after-free in snd_usb_mixer_free() {CVE-2026-23089}
• nfsd: provide locking for v4_end_grace {CVE-2026-22980}
• ext4: fix uninititialized value in 'ext4_evict_inode' {CVE-2022-50546}
• ip_vti: fix potential slab-use-after-free in decode_session6 {CVE-2023-53559}
• dm flakey: don't corrupt the zero page {CVE-2023-54317}
• net: add dst_dev_rcu() helper for safe dst->dev access {CVE-2025-40135}
• xhci: simplify event ring dequeue tracking for transfer events
• i40e: increase max descriptors for XL710
• perf/core: Prevent VMA split of buffer mappings {CVE-2025-38563}
• net/sched: sch_qfq: Avoid triggering might_sleep in atomic context in qfq_delete_class
• KVM: x86: Reset IRTE to host control if new route isn't postable {CVE-2025-37885}
• ipvlan: add ipvlan_route_v6_outbound() helper {CVE-2023-52796}
• net: phylink: add lock for serializing concurrent pl->phydev writes with resolver {CVE-2025-39905}
• kyber: fix out of bounds access when preempted {CVE-2021-46984}
• page_pool: Fix use-after-free in page_pool_recycle_in_ring {CVE-2025-38129}
• scsi: mpi3mr: Use number of bits to manage bitmap sizes {CVE-2023-53376}
• crypto: lzo - Fix compression buffer overrun {CVE-2025-38068}
• ipv6: use RCU for dst->dev access in ip6_xmit, ip6_output, ip6_finish_output2 {CVE-2025-40135} {CVE-2025-40158}
• HID: hyperv: Correctly access fields declared as __le16 {CVE-2025-38103}
• i40e: add validation for ring_len param {CVE-2025-39973}
• mmc: core: use sysfs_emit() instead of sprintf() {CVE-2022-49267}
• cacheinfo: Fix shared_cpu_map to handle shared caches at different levels {CVE-2023-53254}
• drm/amdkfd: Fix double release compute pasid {CVE-2022-50303}
• drm/amd/display: Check dce_hwseq before dereferencing it {CVE-2025-38361}
• RDMA/rxe: Fix mr->map double free {CVE-2022-50543}
• virtio-net: ensure the received length does not exceed allocated size {CVE-2025-38375}
• crypto: qat - resolve race condition during AER recovery {CVE-2024-26974}

Root has patched CVE-2023-53376 in the linux package for Root:Ubuntu:22.04. Multiple fixed versions available.