CVE-2026-52928— af_unix: Reject SIOCATMARK on non-stream sockets
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I. Basic Information for CVE-2026-52928
Vulnerability Information
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Vulnerability Title
af_unix: Reject SIOCATMARK on non-stream sockets
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: af_unix: Reject SIOCATMARK on non-stream sockets SIOCATMARK reports whether the receive queue is at the urgent mark for MSG_OOB. In AF_UNIX, MSG_OOB is supported only for SOCK_STREAM sockets. SOCK_DGRAM and SOCK_SEQPACKET reject MSG_OOB in sendmsg() and recvmsg(), so they should not support SIOCATMARK either. Return -EOPNOTSUPP for non-stream sockets before checking the receive queue.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-52928
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Patches & Fixes for CVE-2026-52928 (2)
Other References for CVE-2026-52928 (2)
Same Patch Batch · Linux · 2026-06-24 · 219 CVEs total
| CVE-2026-52979 | net: psp: check for device unregister when creating assoc | |
| CVE-2026-52992 | fs/adfs: validate nzones in adfs_validate_bblk() | |
| CVE-2026-52993 | tipc: fix double-free in tipc_buf_append() | |
| CVE-2026-52991 | sched/psi: fix race between file release and pressure write | |
| CVE-2026-52990 | fsnotify: fix inode reference leak in fsnotify_recalc_mask() | |
| CVE-2026-52988 | netfilter: nf_tables: join hook list via splice_list_rcu() in commit phase | |
| CVE-2026-52989 | nvmet-tcp: propagate nvmet_tcp_build_pdu_iovec() errors to its callers | |
| CVE-2026-52987 | drm/amdgpu: avoid double drm_exec_fini() in userq validate | |
| CVE-2026-52986 | netfilter: nf_conntrack_sip: don't use simple_strtoul | |
| CVE-2026-52985 | netdevsim: zero initialize struct iphdr in dummy sk_buff | |
| CVE-2026-52984 | net/sched: netem: fix queue limit check to include reordered packets | |
| CVE-2026-52982 | net: usb: rtl8150: fix use-after-free in rtl8150_start_xmit() | |
| CVE-2026-52983 | net: airoha: fix BQL imbalance in TX path | |
| CVE-2026-52981 | neigh: let neigh_xmit take skb ownership | |
| CVE-2026-52969 | KVM: Reject wrapped offset in kvm_reset_dirty_gfn() | |
| CVE-2026-52971 | net: ena: PHC: Fix potential use-after-free in get_timestamp | |
| CVE-2026-52972 | crypto: af_alg - Cap AEAD AD length to 0x80000000 | |
| CVE-2026-52970 | netfilter: nft_ct: fix missing expect put in obj eval | |
| CVE-2026-52973 | futex: Drop CLONE_THREAD requirement for private default hash alloc | |
| CVE-2026-52968 | KVM: s390: pci: fix GAIT table indexing due to double-scaling pointer arithmetic |
Showing top 20 of 219 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-53277
KVM: arm64: Take the SRCU lock for page table walks in fault - CVE-2026-53276
Bluetooth: ISO: Fix a use-after-free of the hci_conn pointer - CVE-2026-53275
ipv6: mcast: Fix use-after-free when processing MLD queries - CVE-2026-53274
net/smc: fix sleep-inside-lock in __smc_setsockopt() causing - CVE-2026-53273
tee: optee: prevent use-after-free when the client exits bef
Same vendor: Linux
- CVE-2026-53277
KVM: arm64: Take the SRCU lock for page table walks in fault - CVE-2026-53276
Bluetooth: ISO: Fix a use-after-free of the hci_conn pointer - CVE-2026-53275
ipv6: mcast: Fix use-after-free when processing MLD queries - CVE-2026-53274
net/smc: fix sleep-inside-lock in __smc_setsockopt() causing - CVE-2026-53273
tee: optee: prevent use-after-free when the client exits bef
V. Comments for CVE-2026-52928
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