Summary
[4.18.0-553.174.1]
- Update Oracle Linux certificates (Kevin Lyons)
- Disable signing for aarch64 (Ilya Okomin)
- Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list (olkmod_signing_key.pem) [Orabug: 29539237]
- Update x509.genkey [Orabug: 24817676]
- Conflict with shim-ia32 and shim-x64 <= 15.3-1.0.3
- Remove upstream reference during boot (Kevin Lyons) [Orabug: 34750652]
- Add new Oracle Linux Driver Signing (key 1) certificate [Orabug: 37985772]
[4.18.0-553.174.1]
- powerpc/pseries: pci - logic bug (Mamatha Inamdar) [RHEL-240146]
- md/raid5-ppl: fix use-after-free in ppl_do_flush() (CKI Backport Bot) [RHEL-278122] {CVE-2026-93262}
- svcrdma: Reject Write/Reply chunks with segcount 0 (Olga Kornievskaia) [RHEL-275085] {CVE-2026-93228}
- svcrdma: Address an integer overflow (Olga Kornievskaia) [RHEL-275085] {CVE-2024-53151}
- NFSD: Prevent client use-after-free during blocked-lock reaping (Olga Kornievskaia) [RHEL-270899] {CVE-2026-90036}
- svcrdma: Validate Read chunk positions before reconstruction (Olga Kornievskaia) [RHEL-271446] {CVE-2026-89526}
- udp: fix potential use-after-free in tunnel segmentation (Antoine Tenart) [RHEL-268111] {CVE-2026-74705}
- ASoC: SOF: ipc3-control: Fix heap overflow in bytes_ext put/get (CKI Backport Bot) [RHEL-261680] {CVE-2026-72262}
- ALSA: usx2y: bound the hwdep mmap fault offset (CKI Backport Bot) [RHEL-256443] {CVE-2026-74641}
- net/sched: cls_route: fix fastmap use-after-free on filter (CKI Backport Bot) [RHEL-248781] {CVE-2026-74583}
- net/sched: act_tunnel_key: Defer dst_release to RCU callback (CKI Backport Bot) [RHEL-240916] {CVE-2026-68377}
[4.18.0-553.173.1]
- drm/amdkfd: Add TLB flush after MES queue eviction/suspension (Jocelyn Falempe) [RHEL-262108] {CVE-2026-89811}
- drm/amd/display: set new_stream to NULL after release (Jocelyn Falempe) [RHEL-260521] {CVE-2026-68236}
- drm/vmwgfx: use check_add_overflow for shader size+offset bound (Jocelyn Falempe) [RHEL-258131] {CVE-2026-80887}
- drm/amdgpu/vce: fix integer overflow in image size (Jocelyn Falempe) [RHEL-237823 RHEL-268877] {CVE-2026-68108}
- drm/dp/mst: fix buffer overflows in sideband chunk accumulation (Jocelyn Falempe) [RHEL-240862] {CVE-2026-68278}
- ipv6: validate extension header length before copying to cmsg (Antoine Tenart) [RHEL-225371] {CVE-2026-63920}
- wifi: mac80211: defer link RX stats percpu free to RCU (CKI Backport Bot) [RHEL-263760] {CVE-2026-68409}
- cifs: validate DFS referral string offsets (CKI Backport Bot) [RHEL-261990] {CVE-2026-72318}
- openvswitch: vport: fix self-deadlock on release of tunnel ports (Timothy Redaelli) [RHEL-253844] {CVE-2026-31678}
- openvswitch: defer tunnel netdev_put to RCU release (Timothy Redaelli) [RHEL-253844] {CVE-2026-31678}
Fixed packages 20
| Release | Package | Fixed in |
|---|---|---|
| Oracle Linux · 8 | bpftool | 0:4.18.0-553.174.1.el8_10 |
| Oracle Linux · 8 | kernel | 0:4.18.0-553.174.1.el8_10 |
| Oracle Linux · 8 | kernel-abi-stablelists | 0:4.18.0-553.174.1.el8_10 |
| Oracle Linux · 8 | kernel-core | 0:4.18.0-553.174.1.el8_10 |
| Oracle Linux · 8 | kernel-cross-headers | 0:4.18.0-553.174.1.el8_10 |
| Oracle Linux · 8 | kernel-debug | 0:4.18.0-553.174.1.el8_10 |
| Oracle Linux · 8 | kernel-debug-core | 0:4.18.0-553.174.1.el8_10 |
| Oracle Linux · 8 | kernel-debug-devel | 0:4.18.0-553.174.1.el8_10 |
| Oracle Linux · 8 | kernel-debug-modules | 0:4.18.0-553.174.1.el8_10 |
| Oracle Linux · 8 | kernel-debug-modules-extra | 0:4.18.0-553.174.1.el8_10 |
| Oracle Linux · 8 | kernel-devel | 0:4.18.0-553.174.1.el8_10 |
| Oracle Linux · 8 | kernel-doc | 0:4.18.0-553.174.1.el8_10 |
| Oracle Linux · 8 | kernel-headers | 0:4.18.0-553.174.1.el8_10 |
| Oracle Linux · 8 | kernel-modules | 0:4.18.0-553.174.1.el8_10 |
| Oracle Linux · 8 | kernel-modules-extra | 0:4.18.0-553.174.1.el8_10 |
| Oracle Linux · 8 | kernel-tools | 0:4.18.0-553.174.1.el8_10 |
| Oracle Linux · 8 | kernel-tools-libs | 0:4.18.0-553.174.1.el8_10 |
| Oracle Linux · 8 | kernel-tools-libs-devel | 0:4.18.0-553.174.1.el8_10 |
| Oracle Linux · 8 | perf | 0:4.18.0-553.174.1.el8_10 |
| Oracle Linux · 8 | python3-perf | 0:4.18.0-553.174.1.el8_10 |
Vulnerabilities 9
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Critical 10.0
udp: fix potential use-after-free in tunnel segmentation
In the Linux kernel, the following vulnerability has been resolved: udp: fix potential use-after-free in tunnel segmentation __skb_udp_tunnel_segment() gets the UDP header before ensuring the tunnel header is in the skb head. If the pull reallocates skb->head…
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Critical 9.8
svcrdma: Validate Read chunk positions before reconstruction
In the Linux kernel, the following vulnerability has been resolved: svcrdma: Validate Read chunk positions before reconstruction The RPC/RDMA Read chunk position field is supplied by the remote client and stored verbatim in the parsed chunk list. xdr_count_re…
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Critical 9.8
NFSD: Prevent client use-after-free during blocked-lock reaping
In the Linux kernel, the following vulnerability has been resolved: NFSD: Prevent client use-after-free during blocked-lock reaping A bare lock owner -- its only remaining reference a blocked lock on nn->blocked_locks_lru -- holds a raw pointer to its nfs4_cl…
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Critical 9.1
svcrdma: Reject Write/Reply chunks with segcount 0
In the Linux kernel, the following vulnerability has been resolved: svcrdma: Reject Write/Reply chunks with segcount 0 A peer can send a Write or Reply chunk whose segcount field is zero. xdr_check_write_chunk() only rejects segcount > rc_maxpages, so zero pa…
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High 7.8
net/sched: act_tunnel_key: Defer dst_release to RCU callback
In the Linux kernel, the following vulnerability has been resolved: net/sched: act_tunnel_key: Defer dst_release to RCU callback Fix a race-condition use-after-free in tunnel_key_release_params(). The function releases the metadata_dst of the old params synch…
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High 7.8
ASoC: SOF: ipc3-control: Fix heap overflow in bytes_ext put/get
In the Linux kernel, the following vulnerability has been resolved: ASoC: SOF: ipc3-control: Fix heap overflow in bytes_ext put/get The ipc_control_data buffer is allocated as kzalloc(max_size), where max_size covers the entire struct sof_ipc_ctrl_data includ…
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High 7.8CVE-2026-74583 Public exploit
net/sched: cls_route: fix fastmap use-after-free on filter
In the Linux kernel, the following vulnerability has been resolved: net/sched: cls_route: fix fastmap use-after-free on filter The route4 classifier maintains a 16-slot fastmap cache that stores raw struct route4_filter pointers indexed by (id, iif). The read…
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High 7.8
ALSA: usx2y: bound the hwdep mmap fault offset
In the Linux kernel, the following vulnerability has been resolved: ALSA: usx2y: bound the hwdep mmap fault offset snd_us428ctls_vm_fault() turns the faulting page offset into a kernel address with no bound of any kind: offset = vmf->pgoff << PAGE_SHIFT; vadd…
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High 7.8
md/raid5-ppl: fix use-after-free in ppl_do_flush()
In the Linux kernel, the following vulnerability has been resolved: md/raid5-ppl: fix use-after-free in ppl_do_flush() The loop in ppl_do_flush() continues iterating after calling ppl_io_unit_finished(), touching io->pending_flushes and leading to a use-after…