SUSE-SU-2026:20720-1

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Source
https://www.suse.com/support/update/announcement/2026/suse-su-202620720-1/
Import Source
https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:20720-1.json
JSON Data
https://api.osv.dev/v1/vulns/SUSE-SU-2026:20720-1
Upstream
Related
Published
2026-03-11T16:03:14Z
Modified
2026-03-23T04:53:09.791640Z
Summary
Security update for the Linux Kernel
Details

The SUSE Linux Enterprise Micro 6.0 and Micro 6.1 kernel was updated to fix various security issues

The following security issues were fixed:

  • CVE-2023-53817: crypto: lib/mpi - avoid null pointer deref in mpicmpui() (bsc#1254992).
  • CVE-2025-37861: scsi: mpi3mr: Synchronous access b/w reset and tm thread for reply queue (bsc#1243055).
  • CVE-2025-39748: bpf: Forget ranges when refining tnum after JSET (bsc#1249587).
  • CVE-2025-39964: crypto: afalg - Disallow concurrent writes in afalg_sendmsg (bsc#1251966).
  • CVE-2025-40099: cifs: parsedfsreferrals: prevent oob on malformed input (bsc#1252911).
  • CVE-2025-40103: smb: client: Fix refcount leak for cifssbtlink (bsc#1252924).
  • CVE-2025-68283: libceph: replace BUGON with bounds check for map->maxosd (bsc#1255379).
  • CVE-2025-68295: smb: client: fix memory leak in cifsconstructtcon() (bsc#1255129).
  • CVE-2025-68374: md: fix rcu protection in mdwakeupthread (bsc#1255530).
  • CVE-2025-68736: landlock: Fix handling of disconnected directories (bsc#1255698).
  • CVE-2025-68778: btrfs: don't log conflicting inode if it's a dir moved in the current transaction (bsc#1256683).
  • CVE-2025-68785: net: openvswitch: fix middle attribute validation in push_nsh() action (bsc#1256640).
  • CVE-2025-68810: KVM: Disallow toggling KVMMEMGUEST_MEMFD on an existing memslot (bsc#1256679).
  • CVE-2025-71071: iommu/mediatek: fix use-after-free on probe deferral (bsc#1256802).
  • CVE-2025-71104: KVM: x86: Fix VM hard lockup after prolonged inactivity with periodic HV timer (bsc#1256708).
  • CVE-2025-71113: crypto: afalg - zero initialize memory allocated via sockkmalloc (bsc#1256716).
  • CVE-2025-71126: mptcp: reset fallback status gracefully at disconnect() time (bsc#1256755).
  • CVE-2025-71148: net/handshake: restore destructor on submit failure (bsc#1257159).
  • CVE-2025-71184: btrfs: fix NULL dereference on root when tracing inode eviction (bsc#1257635).
  • CVE-2025-71194: btrfs: fix deadlock in waitcurrenttrans() due to ignored transaction type (bsc#1257687).
  • CVE-2025-71225: md: suspend array while updating raid_disks via sysfs (bsc#1258411).
  • CVE-2026-22979: net: fix memory leak in skbsegmentlist for GRO packets (bsc#1257228).
  • CVE-2026-22982: net: mscc: ocelot: Fix crash when adding interface under a lag (bsc#1257179).
  • CVE-2026-22998: nvme-tcp: fix NULL pointer dereferences in nvmettcpbuildpduiovec (bsc#1257209).
  • CVE-2026-23003: geneve: Fix incorrect inner network header offset when innerprotoinherit is set (bsc#1257246).
  • CVE-2026-23004: dst: fix races in rt6uncachedlistdel() and rtdeluncachedlist() (bsc#1257231).
  • CVE-2026-23017: idpf: fix error handling in the init_task on load (bsc#1257552).
  • CVE-2026-23035: net/mlx5e: Pass netdev to mlx5edestroynetdev instead of priv (bsc#1257559).
  • CVE-2026-23053: NFS: Fix a deadlock involving nfsreleasefolio() (bsc#1257718).
  • CVE-2026-23057: vsock/virtio: Coalesce only linear skb (bsc#1257740).
  • CVE-2026-23060: crypto: authencesn - reject too-short AAD (assoclen<8) to match ESP/ESN spec (bsc#1257735).
  • CVE-2026-23064: net/sched: act_ife: avoid possible NULL deref (bsc#1257765).
  • CVE-2026-23074: net/sched: Enforce that teql can only be used as root qdisc (bsc#1257749).
  • CVE-2026-23083: fou: Don't allow 0 for FOUATTRIPPROTO (bsc#1257745).
  • CVE-2026-23084: be2net: Fix NULL pointer dereference in becmdgetmacfrom_list (bsc#1257830).
  • CVE-2026-23085: irqchip/gic-v3-its: Avoid truncating memory addresses (bsc#1257758).
  • CVE-2026-23086: vsock/virtio: cap TX credit to local buffer size (bsc#1257757).
  • CVE-2026-23089: ALSA: usb-audio: Fix use-after-free in sndusbmixer_free() (bsc#1257790).
  • CVE-2026-23095: gue: Fix skb memleak with inner IP protocol 0 (bsc#1257808).
  • CVE-2026-23099: bonding: limit BONDMODE8023AD to Ethernet devices (bsc#1257816).
  • CVE-2026-23102: arm64/fpsimd: signal: Mandate SVE payload for streaming-mode state (bsc#1257772).
  • CVE-2026-23104: ice: fix devlink reload call trace (bsc#1257763).
  • CVE-2026-23105: net/sched: qfq: Use clisactive to determine whether class is active in qfqrmfrom_ag (bsc#1257775).
  • CVE-2026-23107: arm64/fpsimd: signal: Allocate SSVE storage when restoring ZA (bsc#1257762).
  • CVE-2026-23110: scsi: core: Wake up the error handler when final completions race against each other (bsc#1257761).
  • CVE-2026-23111: netfilter: nftables: fix inverted genmask check in nftmapcatchallactivate() (bsc#1258181).
  • CVE-2026-23112: nvmet-tcp: add bounds checks in nvmettcpbuildpduiovec (bsc#1258184).
  • CVE-2026-23113: iouring/io-wq: check IOWQBITEXIT inside work run loop (bsc#1258278).
  • CVE-2026-23116: pmdomain: imx8m-blk-ctrl: Remove separate rst and clk mask for 8mq vpu (bsc#1258277).
  • CVE-2026-23119: bonding: provide a net pointer to __skbflowdissect() (bsc#1258273).
  • CVE-2026-23139: netfilter: nfconncount: update lastgc only when GC has been performed (bsc#1258304).
  • CVE-2026-23141: btrfs: send: check for inline extents in rangeisholeinparent() (bsc#1258377).
  • CVE-2026-23166: ice: Fix NULL pointer dereference in icevsisetnapiqueues (bsc#1258272).
  • CVE-2026-23171: net: bonding: update the slave array for broadcast mode (bsc#1258349).
  • CVE-2026-23173: net/mlx5e: TC, delete flows only for existing peers (bsc#1258520).
  • CVE-2026-23179: nvmet-tcp: fixup hang in nvmettcplistendataready() (bsc#1258394).
  • CVE-2026-23191: ALSA: aloop: Fix racy access at PCM trigger (bsc#1258395).
  • CVE-2026-23198: KVM: Don't clobber irqfd routing type when deassigning irqfd (bsc#1258321).
  • CVE-2026-23208: ALSA: usb-audio: Prevent excessive number of frames (bsc#1258468).
  • CVE-2026-23209: macvlan: fix error recovery in macvlancommonnewlink() (bsc#1258518).
  • CVE-2026-23213: drm/amd/pm: Disable MMIO access during SMU Mode 1 reset (bsc#1258465).
  • CVE-2026-23214: btrfs: reject new transactions if the fs is fully read-only (bsc#1258464).

The following non security issues were fixed:

  • ALSA: usb-audio: Update the number of packets properly at receiving (stable-fixes).
  • ALSA: usb-audio: fix broken logic in sndaudigy2nxled_update() (git-fixes).
  • ASoC: SOF: ipc4-control: If there is no data do not send bytes update (git-fixes).
  • HID: intel-ish-hid: Update ishtp bus match to support device ID table (stable-fixes).
  • PM: sleep: wakeirq: Update outdated documentation comments (git-fixes).
  • Update "drm/mgag200: fix mgag200bmcstop_scanout()" bug number (bsc#1258153)
  • Update upstreamed net and powerpc patch references and sorting
  • bonding: only set speed/duplex to unknown, if getting speed failed (bsc#1253691).
  • btrfs: scrub: always update btrfsscrubprogress::last_physical (git-fixes).
  • clocksource: Print durations for sync check unconditionally (bsc#1241345).
  • clocksource: Reduce watchdog readout delay limit to prevent false positives (bsc#1241345).
  • drm/radeon: delete radeonfenceprocess in is_signaled, no deadlock (stable-fixes).
  • ext4: fix iloc.bh leak in ext4xattrinodeupdateref (git-fixes).
  • landlock: Optimize file path walks and prepare for audit support (bsc#1255698).
  • media: qcom: camss: vfe: Fix out-of-bounds access in vfeisrreg_update() (git-fixes).
  • shrinkslabmemcg: clear_bits of skipped shrinkers (bsc#1256564).
  • spi: tegra210-quad: Move curr_xfer read inside spinlock (bsc#1257952)
  • spi: tegra210-quad: Protect curr_xfer assignment in (bsc#1257952)
  • spi: tegra210-quad: Protect curr_xfer check in IRQ handler (bsc#1257952)
  • spi: tegra210-quad: Protect curr_xfer clearing in (bsc#1257952)
  • spi: tegra210-quad: Protect currxfer in tegraqspicombinedseq_xfer (bsc#1257952)
  • spi: tegra210-quad: Return IRQ_HANDLED when timeout already processed (bsc#1257952)
  • staging: rtl8723bs: fix missing status update on sdioallocirq() failure (stable-fixes).
  • wifi: cfg80211: Fix use_for flag update on BSS refresh (git-fixes).
  • workqueue: mark power efficient workqueue as unbounded if (bsc#1257891)
References

Affected packages

SUSE:Linux Micro 6.0 / kernel-default

Package

Name
kernel-default
Purl
pkg:rpm/suse/kernel-default&distro=SUSE%20Linux%20Micro%206.0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.4.0-40.1

Ecosystem specific 

{
    "binaries": [
        {
            "kernel-kvmsmall": "6.4.0-40.1",
            "kernel-default-livepatch": "6.4.0-40.1",
            "kernel-source": "6.4.0-40.1",
            "kernel-default": "6.4.0-40.1",
            "kernel-macros": "6.4.0-40.1",
            "kernel-default-base": "6.4.0-40.1.21.17",
            "kernel-devel": "6.4.0-40.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:20720-1.json"

SUSE:Linux Micro 6.0 / kernel-default-base

Package

Name
kernel-default-base
Purl
pkg:rpm/suse/kernel-default-base&distro=SUSE%20Linux%20Micro%206.0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.4.0-40.1.21.17

Ecosystem specific 

{
    "binaries": [
        {
            "kernel-kvmsmall": "6.4.0-40.1",
            "kernel-default-livepatch": "6.4.0-40.1",
            "kernel-source": "6.4.0-40.1",
            "kernel-default": "6.4.0-40.1",
            "kernel-macros": "6.4.0-40.1",
            "kernel-default-base": "6.4.0-40.1.21.17",
            "kernel-devel": "6.4.0-40.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:20720-1.json"

SUSE:Linux Micro 6.0 / kernel-kvmsmall

Package

Name
kernel-kvmsmall
Purl
pkg:rpm/suse/kernel-kvmsmall&distro=SUSE%20Linux%20Micro%206.0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.4.0-40.1

Ecosystem specific 

{
    "binaries": [
        {
            "kernel-kvmsmall": "6.4.0-40.1",
            "kernel-default-livepatch": "6.4.0-40.1",
            "kernel-source": "6.4.0-40.1",
            "kernel-default": "6.4.0-40.1",
            "kernel-macros": "6.4.0-40.1",
            "kernel-default-base": "6.4.0-40.1.21.17",
            "kernel-devel": "6.4.0-40.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:20720-1.json"

SUSE:Linux Micro 6.0 / kernel-source

Package

Name
kernel-source
Purl
pkg:rpm/suse/kernel-source&distro=SUSE%20Linux%20Micro%206.0

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
6.4.0-40.1

Ecosystem specific 

{
    "binaries": [
        {
            "kernel-kvmsmall": "6.4.0-40.1",
            "kernel-default-livepatch": "6.4.0-40.1",
            "kernel-source": "6.4.0-40.1",
            "kernel-default": "6.4.0-40.1",
            "kernel-macros": "6.4.0-40.1",
            "kernel-default-base": "6.4.0-40.1.21.17",
            "kernel-devel": "6.4.0-40.1"
        }
    ]
}

Database specific

source 
"https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2026:20720-1.json"