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ALSA-2024:5101 — Important: kernel security update

Affected: AlmaLinux:8: bpftool, AlmaLinux:8: kernel, AlmaLinux:8: kernel-abi-stablelists, AlmaLinux:8: kernel-core, AlmaLinux:8: kernel-cross-headers, AlmaLinux:8: kernel-debug, AlmaLinux:8: kernel-debug-core, AlmaLinux:8: kernel-debug-devel, AlmaLinux:8: kernel-debug-modules, AlmaLinux:8: kernel-debug-modules-extra and 15 more

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

Security Fix(es):

* kernel: powerpc: Fix access beyond end of drmem array (CVE-2023-52451) * kernel: efivarfs: force RO when remounting if SetVariable is not supported (CVE-2023-52463) * kernel: tracing: Restructure trace_clock_global() to never block (CVE-2021-46939) * kernel: ext4: avoid online resizing failures due to oversized flex bg (CVE-2023-52622) * kernel: net/sched: flower: Fix chain template offload (CVE-2024-26669) * kernel: stmmac: Clear variable when destroying workqueue (CVE-2024-26802) * kernel: efi: runtime: Fix potential overflow of soft-reserved region size (CVE-2024-26843) * kernel: quota: Fix potential NULL pointer dereference (CVE-2024-26878) * kernel: TIPC message reassembly use-after-free remote code execution vulnerability (CVE-2024-36886) * kernel: SUNRPC: fix a memleak in gss_import_v2_context (CVE-2023-52653) * kernel: dmaengine/idxd: hardware erratum allows potential security problem with direct access by untrusted application (CVE-2024-21823) * kernel: Revert "net/mlx5: Block entering switchdev mode with ns inconsistency" (CVE-2023-52658) * kernel: ext4: fix corruption during on-line resize (CVE-2024-35807) * kernel: x86/fpu: Keep xfd_state in sync with MSR_IA32_XFD (CVE-2024-35801) * kernel: dyndbg: fix old BUG_ON in >control parser (CVE-2024-35947) * kernel: net/sched: act_skbmod: prevent kernel-infoleak (CVE-2024-35893) * kernel: x86/mce: Make s…

bdu:2025-03407

BELL-CVE-2024-39276

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

certfr-2024-avi-0613 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de Debian. Elles permettent à un attaquant de provo…

certfr-2024-avi-0613

EUVD-2026-320632

fkie_cve-2024-39276

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

ext4: fix mb_cache_entry's e_refcnt leak in ext4_xattr_block_cache_find()

Syzbot reports a warning as follows:

============================================ WARNING: CPU: 0 PID: 5075 at fs/mbcache.c:419 mb_cache_destroy+0x224/0x290 Modules linked in: CPU: 0 PID: 5075 Comm: syz-executor199 Not tainted 6.9.0-rc6-gb947cc5bf6d7 RIP: 0010:mb_cache_destroy+0x224/0x290 fs/mbcache.c:419 Call Trace: <TASK> ext4_put_super+0x6d4/0xcd0 fs/ext4/super.c:1375 generic_shutdown_super+0x136/0x2d0 fs/super.c:641 kill_block_super+0x44/0x90 fs/super.c:1675 ext4_kill_sb+0x68/0xa0 fs/ext4/super.c:7327 [...] ============================================

This is because when finding an entry in ext4_xattr_block_cache_find(), if ext4_sb_bread() returns -ENOMEM, the ce's e_refcnt, which has already grown in the __entry_find(), won't be put away, and eventually trigger the above issue in mb_cache_destroy() due to reference count leakage.

So call mb_cache_entry_put() on the -ENOMEM error branch as a quick fix.

GHSA-hf2g-j6wm-qrrx

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

ext4: fix mb_cache_entry's e_refcnt leak in ext4_xattr_block_cache_find()

Syzbot reports a warning as follows:

So call mb_cache_entry_put() on the -ENOMEM error branch as a quick fix.

ICSA-25-226-15 — Siemens SINEC OS

In gc_data_segment in fs/f2fs/gc.c in the Linux kernel before 5.16.3, special files are not considered, leading to a move_data_page NULL pointer dereference. In the Linux kernel, the following vulnerability has been resolved:

firmware: arm_scmi: Harden accesses to the reset domains

Accessing reset domains descriptors by the index upon the SCMI drivers requests through the SCMI reset operations interface can potentially lead to out-of-bound violations if the SCMI driver misbehave.

Add an internal consistency check before any such domains descriptors accesses. In the Linux kernel, the following vulnerability has been resolved:

media: lgdt3306a: Add a check against null-pointer-def

The driver should check whether the client provides the platform_data.

The following log reveals it:

[ 29.610324] BUG: KASAN: null-ptr-deref in kmemdup+0x30/0x40 [ 29.610730] Read of size 40 at addr 0000000000000000 by task bash/414 [ 29.612820] Call Trace: [ 29.613030] <TASK> [ 29.613201] dump_stack_lvl+0x56/0x6f [ 29.613496] ? kmemdup+0x30/0x40 [ 29.613754] print_report.cold+0x494/0x6b7 [ 29.614082] ? kmemdup+0x30/0x40 [ 29.614340] kasan_report+0x8a/0x190 [ 29.614628] ? kmemdup+0x30/0x40 [ 29.614888] kasan_check_range+0x14d/0x1d0 [ 29.615213] memcpy+0x20/0x60 [ 29.615454] kmemdup+0x30/0x40 [ 29.615700] lgdt3306a_probe+0x52/0x310 [ 29.616339] i2c_device_probe+0x951/0xa90 In the Linux kernel, the following vulnerability has been resolved: netfilter:…

OESA-2024-2028 — kernel security update

Affected: openEuler:22.03-LTS-SP4: kernel

The Linux Kernel, the operating system core itself. Security Fix(es): In the Linux kernel, the following vulnerability has been resolved: ipvlan: Dont Use skb->sk in ipvlan_process_v{4,6}_outbound Raw packet from PF_PACKET socket ontop of an IPv6-backed ipvlan device will hit WARN_ON_ONCE() in sk_mc_loop() through sch_direct_xmit() path. WARNING: CPU: 2 PID: 0 at net/core/sock.c:775 sk_mc_loop+0x2d/0x70 Modules linked in: sch_netem ipvlan rfkill cirrus drm_shmem_helper sg drm_kms_helper CPU: 2 PID: 0 Comm: swapper/2 Kdump: loaded Not tainted 6.9.0+ #279 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 RIP: 0010:sk_mc_loop+0x2d/0x70 Code: fa 0f 1f 44 00 00 65 0f b7 15 f7 96 a3 4f 31 c0 66 85 d2 75 26 48 85 ff 74 1c RSP: 0018:ffffa9584015cd78 EFLAGS: 00010212 RAX: 0000000000000011 RBX: ffff91e585793e00 RCX: 0000000002c6a001 RDX: 0000000000000000 RSI: 0000000000000040 RDI: ffff91e589c0f000 RBP: ffff91e5855bd100 R08: 0000000000000000 R09: 3d00545216f43d00 R10: ffff91e584fdcc50 R11: 00000060dd8616f4 R12: ffff91e58132d000 R13: ffff91e584fdcc68 R14: ffff91e5869ce800 R15: ffff91e589c0f000 FS: 0000000000000000(0000) GS:ffff91e898100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f788f7c44c0 CR3: 0000000008e1a000 CR4: 00000000000006f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <IRQ> ?…

RHSA-2024:5101 — Red Hat Security Advisory: kernel security update

kernel: tracing: Restructure trace_clock_global() to never block kernel: ensure definition of the fixmap area is in a limit kernel: net: ieee802154: fix null deref in parse dev addr kernel: isdn: mISDN: netjet: Fix crash in nj_probe kernel: tcp: fix tcp_init_transfer() to not reset icsk_ca_initialized kernel: irqchip/gic-v3-its: Fix potential VPE leak on error kernel: netfilter: conntrack: serialize hash resizes and cleanups kernel: userfaultfd: fix a race between writeprotect and exit_mmap() kernel: isdn: mISDN: Fix sleeping function called from invalid context kernel: mm: khugepaged: skip huge page collapse for special files kernel: ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port() kernel: ovl: fix warning in ovl_create_real() kernel: net/sunrpc: fix reference count leaks in rpc_sysfs_xprt_state_change kernel: i2c: mlxbf: prevent stack overflow in mlxbf_i2c_smbus_start_transaction() kernel: net: amd-xgbe: Fix skb data length underflow kernel: block: Fix wrong offset in bio_truncate() kernel: net: fix information leakage in /proc/net/ptype kernel: cifs: Fix memory leak when build ntlmssp negotiate blob failed kernel: x86/xen: Fix memory leak in xen_smp_intr_init{_pv}() kernel: Local information disclosure on Intel(R) Atom(R) processors kernel: powerpc: Fix access beyond end of drmem array kernel: efivarfs: force RO when remounting if SetVariable is not supported kernel: use-after-free in kv_parse_power_table kernel: null po…

RHSA-2024:5102 — Red Hat Security Advisory: kernel-rt security update

kernel: tracing: Restructure trace_clock_global() to never block kernel: net: ieee802154: fix null deref in parse dev addr kernel: isdn: mISDN: netjet: Fix crash in nj_probe kernel: tcp: fix tcp_init_transfer() to not reset icsk_ca_initialized kernel: irqchip/gic-v3-its: Fix potential VPE leak on error kernel: netfilter: conntrack: serialize hash resizes and cleanups kernel: userfaultfd: fix a race between writeprotect and exit_mmap() kernel: isdn: mISDN: Fix sleeping function called from invalid context kernel: mm: khugepaged: skip huge page collapse for special files kernel: ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port() kernel: ovl: fix warning in ovl_create_real() kernel: net/sunrpc: fix reference count leaks in rpc_sysfs_xprt_state_change kernel: i2c: mlxbf: prevent stack overflow in mlxbf_i2c_smbus_start_transaction() kernel: net: amd-xgbe: Fix skb data length underflow kernel: block: Fix wrong offset in bio_truncate() kernel: net: fix information leakage in /proc/net/ptype kernel: efivarfs: force RO when remounting if SetVariable is not supported kernel: use-after-free in kv_parse_power_table kernel: null pointer dereference issues in ice_ptp.c kernel: drm: Don't unref the same fb many times by mistake due to deadlock handling kernel: wifi: mac80211: fix potential key use-after-free kernel: pstore/ram: Fix crash when setting number of cpus to an odd number kernel: ext4: avoid online resizing failures due to oversiz…

SSA-613116 — SSA-613116: Multiple Vulnerabilities in Third-Party Components in SINEC OS before V3.1

firmware: arm_scmi: Harden accesses to the reset domains

Add an internal consistency check before any such domains descriptors accesses. In the Linux kernel, the following vulnerability has been resolved:

media: lgdt3306a: Add a check against null-pointer-def

The driver should check whether the client provides the platform_data.

The following log reveals it:

SUSE-SU-2024:2802-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2024-39276

Affected: Ubuntu:Pro:14.04:LTS: linux-azure, 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, Ubuntu:16.04:LTS: linux-hwe-edge, Ubuntu:Pro:16.04:LTS: linux-oracle, Ubuntu:Pro:18.04:LTS: linux, Ubuntu:Pro:18.04:LTS: linux-aws, Ubuntu:18.04:LTS: linux-aws-5.0 and 174 more

In the Linux kernel, the following vulnerability has been resolved: ext4: fix mb_cache_entry's e_refcnt leak in ext4_xattr_block_cache_find() Syzbot reports a warning as follows: ============================================ WARNING: CPU: 0 PID: 5075 at fs/mbcache.c:419 mb_cache_destroy+0x224/0x290 Modules linked in: CPU: 0 PID: 5075 Comm: syz-executor199 Not tainted 6.9.0-rc6-gb947cc5bf6d7 RIP: 0010:mb_cache_destroy+0x224/0x290 fs/mbcache.c:419 Call Trace: <TASK> ext4_put_super+0x6d4/0xcd0 fs/ext4/super.c:1375 generic_shutdown_super+0x136/0x2d0 fs/super.c:641 kill_block_super+0x44/0x90 fs/super.c:1675 ext4_kill_sb+0x68/0xa0 fs/ext4/super.c:7327 [...] ============================================ This is because when finding an entry in ext4_xattr_block_cache_find(), if ext4_sb_bread() returns -ENOMEM, the ce's e_refcnt, which has already grown in the __entry_find(), won't be put away, and eventually trigger the above issue in mb_cache_destroy() due to reference count leakage. So call mb_cache_entry_put() on the -ENOMEM error branch as a quick fix.

WID-SEC-W-2024-1451 — Linux Kernel: Mehrere Schwachstellen

Ein lokaler Angreifer kann mehrere Schwachstellen im Linux-Kernel ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen oder einen unspezifischen Angriff durchzuführen.