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ALSA-2024:2394 — Important: kernel security, bug fix, and enhancement update

Affected: AlmaLinux:9: bpftool, AlmaLinux:9: kernel, AlmaLinux:9: kernel-64k, AlmaLinux:9: kernel-64k-core, AlmaLinux:9: kernel-64k-debug, AlmaLinux:9: kernel-64k-debug-core, AlmaLinux:9: kernel-64k-debug-devel, AlmaLinux:9: kernel-64k-debug-devel-matched, AlmaLinux:9: kernel-64k-debug-modules, AlmaLinux:9: kernel-64k-debug-modules-core and 52 more

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: GSM multiplexing race condition leads to privilege escalation (CVE-2023-6546) * kernel: multiple use-after-free vulnerabilities (CVE-2024-1086, CVE-2023-3567, CVE-2023-4133, CVE-2023-6932, CVE-2023-39198, CVE-2023-51043, CVE-2023-51779, CVE-2023-51780, CVE-2024-1085, CVE-2024-26582) * kernel: Bluetooth BR/EDR PIN Pairing procedure is vulnerable to an impersonation attack (CVE-2020-26555) * kernel: memcg does not limit the number of POSIX file locks allowing memory exhaustion (CVE-2022-0480) * kernel: multiple NULL pointer dereference vulnerabilities (CVE-2022-38096, CVE-2023-6622, CVE-2023-6915, CVE-2023-42754, CVE-2023-46862, CVE-2023-52574, CVE-2024-0841, CVE-2023-52448) * kernel: integer overflow in l2cap_config_req() in net/bluetooth/l2cap_core.c (CVE-2022-45934) * kernel: netfilter: nf_tables: out-of-bounds access in nf_tables_newtable() (CVE-2023-6040) * kernel: GC's deletion of an SKB races with unix_stream_read_generic() leading to UAF (CVE-2023-6531) * kernel: Out of boundary write in perf_read_group() as result of overflow a perf_event's read_size (CVE-2023-6931) * kernel: Bluetooth Forward and Future Secrecy Attacks and Defenses (CVE-2023-24023) * kernel: irdma: Improper access control (CVE-2023-25775) * Kernel: double free in hci_conn_cleanup of the bluetooth subsystem (CVE-2023-28464) * kernel: Bluetooth: HCI: global o…

bdu:2025-03821

BELL-CVE-2023-52489

Affected: Alpaquita:23: linux-lts, Alpaquita:25: linux-lts, Alpaquita:stream: linux-lts

certfr-2024-avi-0364 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de RedHat. Certaines d'…

certfr-2024-avi-0364

EUVD-2026-311535

fkie_cve-2023-52489

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

mm/sparsemem: fix race in accessing memory_section->usage

The below race is observed on a PFN which falls into the device memory region with the system memory configuration where PFN's are such that [ZONE_NORMAL ZONE_DEVICE ZONE_NORMAL]. Since normal zone start and end pfn contains the device memory PFN's as well, the compaction triggered will try on the device memory PFN's too though they end up in NOP(because pfn_to_online_page() returns NULL for ZONE_DEVICE memory sections). When from other core, the section mappings are being removed for the ZONE_DEVICE region, that the PFN in question belongs to, on which compaction is currently being operated is resulting into the kernel crash with CONFIG_SPASEMEM_VMEMAP enabled. The crash logs can be seen at [1].

compact_zone() memunmap_pages ------------- --------------- __pageblock_pfn_to_page ...... (a)pfn_valid(): valid_section()//return true (b)__remove_pages()-> sparse_remove_section()-> section_deactivate(): [Free the array ms->usage and set ms->usage = NULL] pfn_section_valid() [Access ms->usage which is NULL]

NOTE: From the above it can be said that the race is reduced to between the pfn_valid()/pfn_section_valid() and the section deactivate with SPASEMEM_VMEMAP enabled.

The commit b943f045a9af("mm/sparse: fix kernel crash with pfn_section_valid check") tried to address the same probl…

GHSA-xfm9-cv4j-c74m

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

mm/sparsemem: fix race in accessing memory_section->usage

NOTE: From the above it can be said that the race is reduced to between the pfn_valid()/pfn_section_valid() and the section deactivate with SPASEMEM_VMEMAP enabled.

The commit b943f045a9af("mm/sparse: fix kernel crash with pfn_section_valid check") tried to address the same probl…

gsd-2023-52489

RHSA-2024:10262 — Red Hat Security Advisory: kernel security update

kernel: improper input validation may lead to privilege escalation kernel: hwmon: (mlxreg-fan) Return non-zero value when fan current state is enforced from sysfs kernel: userfaultfd: fix a race between writeprotect and exit_mmap() kernel: Linux ebpf logic vulnerability leads to critical memory read and write gaining root privileges kernel: local privileges escalation in kernel/bpf/verifier.c kernel: nvme-tcp: fix UAF when detecting digest errors kernel: xprtrdma: fix pointer derefs in error cases of rpcrdma_ep_create kernel: bpf: Fix crash due to out of bounds access into reg2btf_ids. kernel: x86/mm: Randomize per-cpu entry area kernel: mm/sparsemem: fix race in accessing memory_section->usage kernel: blk-mq: fix IO hang from sbitmap wakeup race kernel: mac802154: fix llsec key resources release in mac802154_llsec_key_del kernel: genirq/cpuhotplug, x86/vector: Prevent vector leak during CPU offline kernel: vt: fix unicode buffer corruption when deleting characters kernel: mptcp: ensure snd_nxt is properly initialized on connect kernel: scsi: mpi3mr: Avoid memcpy field-spanning write WARNING kernel: bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE kernel: drm/radeon: fix UBSAN warning in kv_dpm.c kernel: bpf: Fix overrunning reservations in ringbuf kernel: xfs: add bounds checking to xlog_recover_process_data kernel: sched/deadline: Fix task_struct reference leak kernel: mptcp: pm: Fix uaf in __timer_delete_sync

RHSA-2024:2394 — Red Hat Security Advisory: kernel security, bug fix, and enhancement update

kernel: Bluetooth BR/EDR PIN Pairing procedure is vulnerable to an impersonation attack kernel: ovl: fix warning in ovl_create_real() kernel: memcg does not limit the number of POSIX file locks allowing memory exhaustion kernel: vmwgfx: NULL pointer dereference in vmw_cmd_dx_define_query kernel: integer overflow in l2cap_config_req() in net/bluetooth/l2cap_core.c kernel: i2c: mlxbf: prevent stack overflow in mlxbf_i2c_smbus_start_transaction() kernel: Bluetooth: L2CAP: Fix u8 overflow kernel: hwmon: (coretemp) fix pci device refcount leak in nv1a_ram_new() kernel: tracing: Fix sleeping function called from invalid context on RT kernel kernel: net: mdio: unexport __init-annotated mdio_bus_init() kernel: arm64: ftrace: consistently handle PLTs. kernel: mm/uffd: fix pte marker when fork() without fork event kernel: Bluetooth: Fix a buffer overflow in mgmt_mesh_add() kernel: tty: n_gsm: add sanity check for gsm->receive in gsm_receive_buf() kernel: ftrace: Fix NULL pointer dereference in is_ftrace_trampoline when ftrace is dead kernel: tee: add overflow check in register_shm_helper() kernel: tty: n_gsm: fix deadlock and link starvation in outgoing data path kernel: PM: hibernate: defer device probing when resuming from hibernation kernel: ext4: don't allow journal inode to have encrypt flag kernel: ext4: fix delayed allocation bug in ext4_clu_mapped for bigalloc + inline kernel: erofs: fix order >= MAX_ORDER warning due to crafted negative i_size kernel: perf/x86/intel/uncore: F…

RXSA-2024:3138 — Moderate: kernel security, bug fix, and enhancement update

Affected: Rocky Linux:8: kernel

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Rocky Linux SIG Cloud 8.10 Release Notes linked from the References section.

SUSE-SU-2024:3190-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2023-52489

Affected: Ubuntu:Pro:14.04:LTS: linux, Ubuntu:Pro:14.04:LTS: linux-aws, Ubuntu:Pro:14.04:LTS: linux-azure, Ubuntu:Pro:14.04:LTS: linux-lts-xenial, Ubuntu:Pro:16.04:LTS: linux, Ubuntu:Pro:16.04:LTS: linux-aws, Ubuntu:Pro:16.04:LTS: linux-aws-hwe, Ubuntu:Pro:16.04:LTS: linux-azure, Ubuntu:Pro:16.04:LTS: linux-gcp, Ubuntu:Pro:16.04:LTS: linux-hwe and 160 more

In the Linux kernel, the following vulnerability has been resolved: mm/sparsemem: fix race in accessing memory_section->usage The below race is observed on a PFN which falls into the device memory region with the system memory configuration where PFN's are such that [ZONE_NORMAL ZONE_DEVICE ZONE_NORMAL]. Since normal zone start and end pfn contains the device memory PFN's as well, the compaction triggered will try on the device memory PFN's too though they end up in NOP(because pfn_to_online_page() returns NULL for ZONE_DEVICE memory sections). When from other core, the section mappings are being removed for the ZONE_DEVICE region, that the PFN in question belongs to, on which compaction is currently being operated is resulting into the kernel crash with CONFIG_SPASEMEM_VMEMAP enabled. The crash logs can be seen at [1]. compact_zone() memunmap_pages ------------- --------------- __pageblock_pfn_to_page ...... (a)pfn_valid(): valid_section()//return true (b)__remove_pages()-> sparse_remove_section()-> section_deactivate(): [Free the array ms->usage and set ms->usage = NULL] pfn_section_valid() [Access ms->usage which is NULL] NOTE: From the above it can be said that the race is reduced to between the pfn_valid()/pfn_section_valid() and the section deactivate with SPASEMEM_VMEMAP enabled. The commit b943f045a9af("mm/sparse: fix kernel crash with pfn_section_valid check") tried to address the same problem by…

WID-SEC-W-2024-0527 — Linux Kernel: Mehrere Schwachstellen

Ein lokaler Angreifer kann mehrere Schwachstellen im Linux Kernel ausnutzen, um einen Denial of Service Zustand zu verursachen und einen nicht näher spezifizierten Angriff durchzuführen.