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ALSA-2024:5928 — Important: kernel security 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: nftables: nft_set_rbtree skip end interval element from gc (CVE-2024-26581) * kernel: netfilter: nft_limit: reject configurations that cause integer overflow (CVE-2024-26668) * kernel: vfio/pci: Lock external INTx masking ops (CVE-2024-26810) * kernel: net: ice: Fix potential NULL pointer dereference in ice_bridge_setlink() (CVE-2024-26855) * kernel: x86/xen: Add some null pointer checking to smp.c (CVE-2024-26908) * kernel: netfilter: nf_tables: release mutex after nft_gc_seq_end from abort path (CVE-2024-26925) * kernel: netfilter: nf_tables: Fix potential data-race in __nft_expr_type_get() (CVE-2024-27020) * kernel: netfilter: nf_tables: Fix potential data-race in __nft_obj_type_get() (CVE-2024-27019) * kernel: netfilter: flowtable: validate pppoe header (CVE-2024-27016) * kernel: netfilter: bridge: confirm multicast packets before passing them up the stack (CVE-2024-27415) * kernel: netfilter: bridge: replace physindev with physinif in nf_bridge_info (CVE-2024-35839) * kernel: netfilter: nf_tables: Fix potential data-race in __nft_flowtable_type_get() (CVE-2024-35898) * kernel: netfilter: nf_tables: discard table flag update with pending basechain deletion (CVE-2024-35897) * kernel: netfilter: validate user input for expected length (CVE-2024-35896) * kernel: netfilter: complete validation of user input (CVE-2024-35962) *…

bdu:2024-10060

BELL-CVE-2024-35962

Affected: Alpaquita:23: linux-lts

certfr-2024-avi-0527 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de Debian LTS. Elles permettent à un attaquant de p…

certfr-2024-avi-0527

EUVD-2026-345723

fkie_cve-2024-35962

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

netfilter: complete validation of user input

In my recent commit, I missed that do_replace() handlers use copy_from_sockptr() (which I fixed), followed by unsafe copy_from_sockptr_offset() calls.

In all functions, we can perform the @optlen validation before even calling xt_alloc_table_info() with the following check:

if ((u64)optlen < (u64)tmp.size + sizeof(tmp)) return -EINVAL;

GHSA-j7rq-227r-98j4

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

netfilter: complete validation of user input

In my recent commit, I missed that do_replace() handlers use copy_from_sockptr() (which I fixed), followed by unsafe copy_from_sockptr_offset() calls.

In all functions, we can perform the @optlen validation before even calling xt_alloc_table_info() with the following check:

if ((u64)optlen < (u64)tmp.size + sizeof(tmp)) return -EINVAL;

ICSA-24-102-01 — Siemens SIMATIC S7-1500 TM MFP

An out-of-bounds (OOB) memory write flaw was found in the NFSD in the Linux kernel. Missing sanity may lead to a write beyond bmval[bmlen-1] in nfsd4_decode_bitmap4 in fs/nfsd/nfs4xdr.c. In this flaw, a local attacker with user privilege may gain access to out-of-bounds memory, leading to a system integrity and confidentiality threat. fs/nfsd/trace.h in the Linux kernel before 5.13.4 might allow remote attackers to cause a denial of service (out-of-bounds read in strlen) by sending NFS traffic when the trace event framework is being used for nfsd. SUNRPC: null pointer dereference in svc_rqst_free(). When alloc_pages_node() returns null in svc_rqst_alloc(), the null rq_scratch_page pointer will be dereferenced when calling put_page() in svc_rqst_free(). NFSD: READDIR buffer overflow. If a client sends a READDIR count argument that is too small (say, zero), then the buffer size calculation in the new init_dirlist helper functions results in an underflow, allowing the XDR stream functions to write beyond the actual buffer. This calculation has always been suspect. NFSD has never sanity- checked the READDIR count argument, but the old entry encoders managed the problem correctly. With the commits below, entry encoding changed, exposing the underflow to the pointer arithmetic in xdr_reserve_space(). Modern NFS clients attempt to retrieve as much data as possible for each READDIR request. nfsd: NULL dereference in nfs3svc_encode_getaclres. A NULL pointer dereference vulnerability…

OESA-2026-2673 — kernel security update

Affected: openEuler:20.03-LTS-SP4: kernel

The Linux Kernel, the operating system core itself. Security Fix(es):

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

net: hamradio: fix memory leak in mkiss_close

My local syzbot instance hit memory leak in mkiss_open()[1]. The problem was in missing free_netdev() in mkiss_close().

In mkiss_open() netdevice is allocated and then registered, but in mkiss_close() netdevice was only unregistered, but not freed.

Fail log:

BUG: memory leak unreferenced object 0xffff8880281ba000 (size 4096): comm "syz-executor.1", pid 11443, jiffies 4295046091 (age 17.660s) hex dump (first 32 bytes): 61 78 30 00 00 00 00 00 00 00 00 00 00 00 00 00 ax0............. 00 27 fa 2a 80 88 ff ff 00 00 00 00 00 00 00 00 .'.*............ backtrace: [<ffffffff81a27201>] kvmalloc_node+0x61/0xf0 [<ffffffff8706e7e8>] alloc_netdev_mqs+0x98/0xe80 [<ffffffff84e64192>] mkiss_open+0xb2/0x6f0 [1] [<ffffffff842355db>] tty_ldisc_open+0x9b/0x110 [<ffffffff84236488>] tty_set_ldisc+0x2e8/0x670 [<ffffffff8421f7f3>] tty_ioctl+0xda3/0x1440 [<ffffffff81c9f273>] __x64_sys_ioctl+0x193/0x200 [<ffffffff8911263a>] do_syscall_64+0x3a/0xb0 [<ffffffff89200068>] entry_SYSCALL_64_after_hwframe+0x44/0xae

BUG: memory leak unreferenced object 0xffff8880141a9a00 (size 96): comm "syz-executor.1", pid 11443, jiffies 4295046091 (age 17.660s) hex dump (first 32 bytes): e8 a2 1…

RHSA-2024:5066 — Red Hat Security Advisory: kernel security update

kernel: bnxt: prevent skb UAF after handing over to PTP worker kernel: block: null pointer dereference in ioctl.c when length and logical block size are misaligned kernel: PM / devfreq: Synchronize devfreq_monitor_[start/stop] kernel: scsi: libfc: Fix potential NULL pointer dereference in fc_lport_ptp_setup() kernel: SUNRPC: Fix UAF in svc_tcp_listen_data_ready() kernel: ext4: regenerate buddy after block freeing failed if under fc replay kernel: bpf: Fix racing between bpf_timer_cancel_and_free and bpf_timer_cancel kernel: scsi: qla2xxx: Fix double free of the ha->vp_map pointer kernel: ARM: 9359/1: flush: check if the folio is reserved for no-mapping addresses kernel: octeontx2-af: race condition on interupts kernel: nouveau: lock the client object tree. kernel: ipvlan: Dont Use skb->sk in ipvlan_process_v{4,6}_outbound kernel: vt: fix unicode buffer corruption when deleting characters kernel: mlxbf_gige: stop interface during shutdown kernel: netfilter: validate user input for expected length kernel: netfilter: complete validation of user input kernel: rtnetlink: Correct nested IFLA_VF_VLAN_LIST attribute validation kernel: i40e: fix vf may be used uninitialized in this function warning kernel: net: core: reject skb_copy(_expand) for fraglist GSO skbs kernel: drm/vmwgfx: Fix invalid reads in fence signaled events kernel: blk-cgroup: fix list corruption from reorder of WRITE ->lqueued kernel: blk-cgroup: fix list corruption from resetting io stat

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…

SSA-265688 — SSA-265688: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 TM MFP V1.1

SUSE-SU-2024:2360-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2024-35962

Affected: Ubuntu:16.04:LTS: linux-hwe-edge, Ubuntu:18.04:LTS: linux-aws-5.0, Ubuntu:18.04:LTS: linux-aws-5.3, Ubuntu:18.04:LTS: linux-azure, Ubuntu:18.04:LTS: linux-azure-5.3, Ubuntu:18.04:LTS: linux-azure-edge, Ubuntu:18.04:LTS: linux-gcp, Ubuntu:18.04:LTS: linux-gcp-5.3, Ubuntu:18.04:LTS: linux-gke-4.15, Ubuntu:18.04:LTS: linux-gke-5.4 and 54 more

In the Linux kernel, the following vulnerability has been resolved: netfilter: complete validation of user input In my recent commit, I missed that do_replace() handlers use copy_from_sockptr() (which I fixed), followed by unsafe copy_from_sockptr_offset() calls. In all functions, we can perform the @optlen validation before even calling xt_alloc_table_info() with the following check: if ((u64)optlen < (u64)tmp.size + sizeof(tmp)) return -EINVAL;

WID-SEC-W-2024-1188 — Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Ein lokaler Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen.