CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2023-54038 – Bluetooth: hci_conn: return ERR_PTR instead of NULL when there is no link
https://notcve.org/view.php?id=CVE-2023-54038
24 Dec 2025 — In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: return ERR_PTR instead of NULL when there is no link hci_connect_sco currently returns NULL when there is no link (i.e. when hci_conn_link() returns NULL). sco_connect() expects an ERR_PTR in case of any error (see line 266 in sco.c). Thus, hcon set as NULL passes through to sco_conn_add(), which tries to get hcon->hdev, resulting in dereferencing a NULL pointer as reported by syzkaller. The same issue exists for iso_co... • https://git.kernel.org/stable/c/06149746e7203d5ffe2d6faf9799ee36203aa8b8 •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2023-54037 – ice: prevent NULL pointer deref during reload
https://notcve.org/view.php?id=CVE-2023-54037
24 Dec 2025 — In the Linux kernel, the following vulnerability has been resolved: ice: prevent NULL pointer deref during reload Calling ethtool during reload can lead to call trace, because VSI isn't configured for some time, but netdev is alive. To fix it add rtnl lock for VSI deconfig and config. Set ::num_q_vectors to 0 after freeing and add a check for ::tx/rx_rings in ring related ethtool ops. Add proper unroll of filters in ice_start_eth(). Reproduction: $watch -n 0.1 -d 'ethtool -g enp24s0f0np0' $devlink dev reloa... • https://git.kernel.org/stable/c/5b246e533d0177775c64b40a2af1e62aff5d279b •
CVSS: -EPSS: 0%CPEs: 5EXPL: 0CVE-2023-54036 – wifi: rtl8xxxu: Fix memory leaks with RTL8723BU, RTL8192EU
https://notcve.org/view.php?id=CVE-2023-54036
24 Dec 2025 — In the Linux kernel, the following vulnerability has been resolved: wifi: rtl8xxxu: Fix memory leaks with RTL8723BU, RTL8192EU The wifi + bluetooth combo chip RTL8723BU can leak memory (especially?) when it's connected to a bluetooth audio device. The busy bluetooth traffic generates lots of C2H (card to host) messages, which are not freed correctly. To fix this, move the dev_kfree_skb() call in rtl8xxxu_c2hcmd_callback() inside the loop where skb_dequeue() is called. The RTL8192EU leaks memory because the ... • https://git.kernel.org/stable/c/e542e66b7c2ee2adeefdbb7f259f2f60cadf2819 •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2023-54035 – netfilter: nf_tables: fix underflow in chain reference counter
https://notcve.org/view.php?id=CVE-2023-54035
24 Dec 2025 — In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: fix underflow in chain reference counter Set element addition error path decrements reference counter on chains twice: once on element release and again via nft_data_release(). Then, d6b478666ffa ("netfilter: nf_tables: fix underflow in object reference counter") incorrectly fixed this by removing the stateful object reference count decrement. Restore the stateful object decrement as in b91d90368837 ("netfilter: nf_tab... • https://git.kernel.org/stable/c/628bd3e49cba1c066228e23d71a852c23e26da73 •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2023-54034 – iommufd: Make sure to zero vfio_iommu_type1_info before copying to user
https://notcve.org/view.php?id=CVE-2023-54034
24 Dec 2025 — In the Linux kernel, the following vulnerability has been resolved: iommufd: Make sure to zero vfio_iommu_type1_info before copying to user Missed a zero initialization here. Most of the struct is filled with a copy_from_user(), however minsz for that copy is smaller than the actual struct by 8 bytes, thus we don't fill the padding. • https://git.kernel.org/stable/c/d624d6652a65ad4f47a58b8651a1ec1163bb81d3 •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2023-54033 – bpf: fix a memory leak in the LRU and LRU_PERCPU hash maps
https://notcve.org/view.php?id=CVE-2023-54033
24 Dec 2025 — In the Linux kernel, the following vulnerability has been resolved: bpf: fix a memory leak in the LRU and LRU_PERCPU hash maps The LRU and LRU_PERCPU maps allocate a new element on update before locking the target hash table bucket. Right after that the maps try to lock the bucket. If this fails, then maps return -EBUSY to the caller without releasing the allocated element. This makes the element untracked: it doesn't belong to either of free lists, and it doesn't belong to the hash table, so can't be re-us... • https://git.kernel.org/stable/c/20b6cc34ea74b6a84599c1f8a70f3315b56a1883 •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2023-54032 – btrfs: fix race when deleting quota root from the dirty cow roots list
https://notcve.org/view.php?id=CVE-2023-54032
24 Dec 2025 — In the Linux kernel, the following vulnerability has been resolved: btrfs: fix race when deleting quota root from the dirty cow roots list When disabling quotas we are deleting the quota root from the list fs_info->dirty_cowonly_roots without taking the lock that protects it, which is struct btrfs_fs_info::trans_lock. This unsynchronized list manipulation may cause chaos if there's another concurrent manipulation of this list, such as when adding a root to it with ctree.c:add_root_to_dirty_list(). This can ... • https://git.kernel.org/stable/c/bed92eae26ccf280d1a2168b7509447b56675a27 •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2023-54031 – vdpa: Add queue index attr to vdpa_nl_policy for nlattr length check
https://notcve.org/view.php?id=CVE-2023-54031
24 Dec 2025 — In the Linux kernel, the following vulnerability has been resolved: vdpa: Add queue index attr to vdpa_nl_policy for nlattr length check The vdpa_nl_policy structure is used to validate the nlattr when parsing the incoming nlmsg. It will ensure the attribute being described produces a valid nlattr pointer in info->attrs before entering into each handler in vdpa_nl_ops. That is to say, the missing part in vdpa_nl_policy may lead to illegal nlattr after parsing, which could lead to OOB read just like CVE-2023... • https://git.kernel.org/stable/c/13b00b135665c92065a27c0c39dd97e0f380bd4f •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2023-54030 – io_uring/net: don't overflow multishot recv
https://notcve.org/view.php?id=CVE-2023-54030
24 Dec 2025 — In the Linux kernel, the following vulnerability has been resolved: io_uring/net: don't overflow multishot recv Don't allow overflowing multishot recv CQEs, it might get out of hand, hurt performance, and in the worst case scenario OOM the task. • https://git.kernel.org/stable/c/b3fdea6ecb55c3ceea866ff66486927e51a982b3 •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2023-54029 – wifi: iwlwifi: fix iwl_mvm_max_amsdu_size() for MLO
https://notcve.org/view.php?id=CVE-2023-54029
24 Dec 2025 — In the Linux kernel, the following vulnerability has been resolved: wifi: iwlwifi: fix iwl_mvm_max_amsdu_size() for MLO For MLO, we cannot use vif->bss_conf.chandef.chan->band, since that will lead to a NULL-ptr dereference as bss_conf isn't used. However, in case of real MLO, we also need to take both LMACs into account if they exist, since the station might be active on both LMACs at the same time. • https://git.kernel.org/stable/c/63e2d06adf6b0842132ba89efdf8fada5f7ff1ac •