Red Hat Security AdvisoryRHSA-2026:93413
kernel security, bug fix, and enhancement update
Released 2026-11-01 · Red Hat rating Important · View on Red Hat →
Fixes 16 records
Priority MEDIUM 49
In the Linux kernel, the following vulnerability has been resolved: mptcp: options: reset DSS fields in case of unexpected size A remote peer could send a malformed DSS with a wrong size, followed by another DSS or MPC +…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.00399 · Published 2026-08-26 · Partial fix · 5.10.266, 5.15.217 +6
Priority MEDIUM 43
In the Linux kernel, the following vulnerability has been resolved: ipv4: free inet_opt and ireq_opt after an RCU grace period tcp_v4_syn_recv_sock() transfers ownership of ireq->ireq_opt to the child socket (newinet->in…
CVSS 3.1CRITICAL 9.8· Network · No auth · No interaction · EPSS 0.0076 · Published 2026-10-15 · Partial fix · 5.10.272, 5.15.223 +6
Priority MEDIUM 41
In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Reserve a terminator byte for the login payload iscsi_target_check_login_request() rejects a login PDU whose DataSegmentLength exce…
CVSS 3.1CRITICAL 9.1· Network · No auth · No interaction · EPSS 0.00841 · Published 2026-09-16 · Partial fix · 5.10.270, 5.15.221 +6
Priority LOW 39
In the Linux kernel, the following vulnerability has been resolved: x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache Make sure resources are not improperly shared in the op cache and cause i…
CVSS 3.1HIGH 8.8· Local · Low privileges · No interaction · EPSS 0.00153 · Published 2026-05-28 · Partial fix · 3.17, 4.5 +9 CWE-862
Priority LOW 37
In the Linux kernel, the following vulnerability has been resolved: KVM: nVMX: Always flush vpid02 on first use Make sure vpid02 is always flushed on first use by setting last_vpid=0 when allocating vpid02.
CVSS 3.1HIGH 8.8· Local · Low privileges · No interaction · EPSS 0.00169 · Published 2026-09-16 · Partial fix · 5.15.221, 6.1.188 +5
Priority LOW 36
In the Linux kernel, the following vulnerability has been resolved: ppp: defer channel free to an RCU grace period to fix pppol2tp RX UAF pppol2tp_recv() runs in the L2TP UDP-encap softirq RX path: l2tp_udp_encap_recv()…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00232 · Published 2026-08-10 · Partial fix · 3.3, 3.17 +10 CWE-416
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: virtio-fs: avoid double-free on failed queue setup virtio_fs_setup_vqs() allocates fs->vqs and fs->mq_map before calling virtio_find_vqs().
CVSS 3.1HIGH 8.4· Local · No auth · No interaction · EPSS 0.0014 · Published 2026-09-24 · Fixed in 6.12.111, 6.18.53 +1
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: smb: client: bound dirent name against end of SMB response in cifs_filldir cifs_filldir() copies the entry name out of an SMB1 TRANS2_FIND_FIRST / FIND_…
CVSS 3.1HIGH 8.1· Network · No auth · User interaction · EPSS 0.00344 · Published 2026-09-24 · Partial fix · 6.1.189, 6.6.158 +3
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: entry: Fix seccomp bypass after ptrace with TSYNC Sashiko review pointed out the following issue.
CVSS 3.1HIGH 8.4· Local · Low privileges · No interaction · EPSS 0.00142 · Published 2026-09-11 · Partial fix · 5.10.270, 5.15.221 +6
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: tipc: require net admin for TIPCv2 netlink mutators TIPCv2 registers mutating generic-netlink operations without admin permission flags.
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00169 · Published 2026-08-15 · Partial fix · 5.10.261, 5.15.212 +6
Priority LOW 35
In the Linux kernel, the following vulnerability has been resolved: i2c: stub: Reject I2C block transfers with invalid length The I2C_SMBUS_I2C_BLOCK_DATA case in stub_xfer() uses data->block[0] as the transfer length.
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00165 · Published 2026-07-20 · Partial fix · 5.10.260, 5.15.211 +6 CWE-787
Priority LOW 33
In the Linux kernel, the following vulnerability has been resolved: xfrm: hold net_device reference under RCU in bundle creation xfrm_bundle_create() and xfrm_create_dummy_bundle() read dst->dev into a local pointer with…
CVSS 3.1HIGH 7.8· Local · Low privileges · No interaction · EPSS 0.00121 · Published 2026-10-06 · Partial fix · 7.2.8, 7.3
Priority LOW 24
In the Linux kernel, the following vulnerability has been resolved: net: sock: fix hardened usercopy panic in sock_recv_errqueue skbuff_fclone_cache was created without defining a usercopy region, [1] unlike skbuff_head_…
CVSS 3.1MEDIUM 5.5· Local · Low privileges · No interaction · EPSS 0.00194 · Published 2026-01-21 · Partial fix · 5.10.248, 5.15.198 +5 CWE-400
Priority LOW 22
In the Linux kernel, the following vulnerability has been resolved: nvmet-auth: fix out-of-bounds write in nvmet_auth_challenge() nvmet_auth_challenge() receives its output buffer as a void pointer.
CVSS — · EPSS 0.00211 · Published 2026-10-18 · Partial fix · 6.1.191, 6.6.160 +4
Priority LOW 22
In the Linux kernel, the following vulnerability has been resolved: KEYS: encrypted: fix integer overflow of datablob_len encrypted_key_alloc() stores datablob_len in a u16.
CVSS — · EPSS 0.00168 · Published 2026-10-06 · Partial fix · 6.12.112, 6.18.54 +2
Priority LOW 22
In the Linux kernel, the following vulnerability has been resolved: mptcp: pm: userspace: fix use-after-free in get_local_id In mptcp_pm_userspace_get_local_id(), the address entry is looked up under spinlock, but its id…
CVSS — · EPSS 0.00211 · Published 2026-08-10 · Fixed in 6.1.184, 6.6.151 +5