Red Hat Security AdvisoryRHSA-2026:21745
kernel-rt security update
Released 2026-05-28 · Red Hat rating Important · View on Red Hat →
Fixes 19 records
Priority MEDIUM 50
In the Linux kernel, the following vulnerability has been resolved: smb: client: validate dacloffset before building DACL pointers parse_sec_desc(), build_sec_desc(), and the chown path in id_mode_to_cifs_acl() all add t…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00675 · Published 2026-05-28 · Partial fix · 5.15.210, 6.1.176 +5 CWE-190
Priority MEDIUM 48
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_h323: check for zero length in DecodeQ931() In DecodeQ931(), the UserUserIE code path reads a 16-bit length from the packet, the…
CVSS 3.1CRITICAL 9.1· Network · No auth · No interaction · EPSS 0.01587 · Published 2026-04-03 · Partial fix · 5.10.253, 5.15.203 +6 CWE-125
Priority MEDIUM 47
In the Linux kernel, the following vulnerability has been resolved: netfilter: ip6t_eui64: reject invalid MAC header for all packets `eui64_mt6()` derives a modified EUI-64 from the Ethernet source address and compares i…
CVSS 3.1CRITICAL 9.4· Network · No auth · No interaction · EPSS 0.00485 · Published 2026-04-25 · Partial fix · 5.10.258, 5.15.209 +6 CWE-125
Priority MEDIUM 42
In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_tcpmss: check remaining length before reading optlen Quoting reporter: In net/netfilter/xt_tcpmss.c (lines 53-68), the TCP option parser r…
CVSS 3.1HIGH 8.2· Network · No auth · No interaction · EPSS 0.00463 · Published 2026-05-06 · Partial fix · 5.10.252, 5.15.202 +6 CWE-125
Priority MEDIUM 40
In the Linux kernel, the following vulnerability has been resolved: xfs: fix freemap adjustments when adding xattrs to leaf blocks xfs/592 and xfs/794 both trip this assertion in the leaf block freemap adjustment code af…
CVSS 3.1HIGH 8.8· Network · Low privileges · No interaction · EPSS 0.00469 · Published 2026-05-06 · Partial fix · 5.10.252, 5.15.202 +6 CWE-664
Priority MEDIUM 40
In the Linux kernel, the following vulnerability has been resolved: smb: client: validate the whole DACL before rewriting it in cifsacl build_sec_desc() and id_mode_to_cifs_acl() derive a DACL pointer from a server-suppl…
CVSS 3.1HIGH 8.8· Network · No auth · User interaction · EPSS 0.00345 · Published 2026-05-01 · Partial fix · 5.15.210, 6.1.176 +5 CWE-125
Priority MEDIUM 40
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: SCO: Fix use-after-free in sco_recv_frame() due to missing sock_hold sco_recv_frame() reads conn->sk under sco_conn_lock() but immediately re…
CVSS 3.1HIGH 8.8· Adjacent network · No auth · No interaction · EPSS 0.00322 · Published 2026-04-06 · Partial fix · 5.10.265, 5.15.203 +6 CWE-416
Priority MEDIUM 40
In the Linux kernel, the following vulnerability has been resolved: libceph: make decode_pool() more resilient against corrupted osdmaps If the osdmap is (maliciously) corrupted such that the encoded length of ceph_pg_po…
CVSS 3.1CRITICAL 9.1· Network · No auth · No interaction · EPSS 0.00458 · Published 2026-01-14 · Partial fix · 5.10.248, 5.15.198 +5 CWE-125
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: HID: wacom: fix out-of-bounds read in wacom_intuos_bt_irq The wacom_intuos_bt_irq() function processes Bluetooth HID reports without sufficient bounds c…
CVSS 3.1HIGH 8.1· Adjacent network · No auth · No interaction · EPSS 0.00256 · Published 2026-05-01 · Partial fix · 5.10.253, 5.15.203 +6 CWE-125
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: can: raw: fix ro->uniq use-after-free in raw_rcv() raw_release() unregisters raw CAN receive filters via can_rx_unregister(), but receiver deletion is d…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00165 · Published 2026-04-23 · Fixed in 5.10.258, 5.15.209 +7 CWE-416
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: net/sched: Only allow act_ct to bind to clsact/ingress qdiscs and shared blocks As Paolo said earlier [1]: "Since the blamed commit below, classify can…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00137 · Published 2026-03-18 · Partial fix · 5.15.203, 6.1.167 +6 CWE-416
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: RDMA/umad: Reject negative data_len in ib_umad_write ib_umad_write computes data_len from user-controlled count and the MAD header sizes.
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.0018 · Published 2026-03-18 · Partial fix · 5.10.252, 5.15.202 +6 CWE-190
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: ALSA: firewire-motu: fix buffer overflow in hwdep read for DSP events The DSP event handling code in hwdep_read() could write more bytes to the user buf…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00175 · Published 2025-12-24 · Fixed in 6.1.160, 6.6.120 +4
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: ima: don't clear IMA_DIGSIG flag when setting or removing non-IMA xattr Currently when both IMA and EVM are in fix mode, the IMA signature will be reset…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00154 · Published 2025-12-16 · Partial fix · 6.1.191, 6.6.117 +3
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: Fix possible UAFs This attemps to fix possible UAFs caused by struct mgmt_pending being freed while still being processed like in the f…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00153 · Published 2025-10-15 · Partial fix · 6.6.140, 6.12.59 +2
Priority LOW 33
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack_helper: pass helper to expect cleanup nf_conntrack_helper_unregister() calls nf_ct_expect_iterate_destroy() to remove expectatio…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00131 · Published 2026-05-01 · Partial fix · 5.10.253, 5.15.203 +6 CWE-416
Priority LOW 33
In the Linux kernel, the following vulnerability has been resolved: Bluetooth: MGMT: validate LTK enc_size on load Load Long Term Keys stores the user-provided enc_size and later uses it to size fixed-size stack operatio…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00129 · Published 2026-05-01 · Partial fix · 5.10.253, 5.15.203 +6 CWE-787
Priority LOW 24
In the Linux kernel, the following vulnerability has been resolved: net: sched: act_csum: validate nested VLAN headers tcf_csum_act() walks nested VLAN headers directly from skb->data when an skb still carries in-payload…
CVSS 3.1MEDIUM 5.5· Local · Low privileges · No interaction · EPSS 0.00117 · Published 2026-04-25 · Partial fix · 4.20, 5.10.258 +7
Priority LOW 20
In the Linux kernel, the following vulnerability has been resolved: md/bitmap: fix GPF in write_page caused by resize race A General Protection Fault occurs in write_page() during array resize: RIP: 0010:write_page+0x22b…
CVSS 3.1MEDIUM 4.7· Local · Low privileges · No interaction · EPSS 0.00091 · Published 2026-05-06 · Partial fix · 5.10.252, 5.15.202 +6 CWE-362