In the Linux kernel, the following vulnerability has been resolved: gpiolib: cdev: fix NULL-pointer dereferences There are several places where we can crash the kernel by requesting lines, unbinding the GPIO device, then calling any of the system calls relevant to the GPIO character device's annonymous file descriptors: ioctl(), read(), poll(). While I observed it with the GPIO simulator, it will also happen for any of the GPIO devices that can be hot-unplugged - for instance any HID GPIO expander (e.g. CP2112). This affects both v1 and v2 uAPI. This fixes it partially by checking if gdev->chip is not NULL but it doesn't entirely remedy the situation as we still have a race condition in which another thread can remove the device after the check.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005634 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    gpiolib: cdev: fix NULL-pointer dereferences

    There are several places where we can crash the kernel by requesting     lines, unbinding the GPIO device, then calling any of the system calls     relevant to the GPIO character device's annonymous file descriptors:
    ioctl(), read(), poll().

    While I observed it with the GPIO simulator, it will also happen for any     of the GPIO devices that can be hot-unplugged - for instance any HID GPIO     expander (e.g. CP2112).

    This affects both v1 and v2 uAPI.

    This fixes it partially by checking if gdev->chip is not NULL but it     doesn't entirely remedy the situation as we still have a race condition     in which another thread can remove the device after the check.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-005425 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    gpiolib: cdev: fix NULL-pointer dereferences

    There are several places where we can crash the kernel by requesting     lines, unbinding the GPIO device, then calling any of the system calls     relevant to the GPIO character device's annonymous file descriptors:
    ioctl(), read(), poll().

    While I observed it with the GPIO simulator, it will also happen for any     of the GPIO devices that can be hot-unplugged - for instance any HID GPIO     expander (e.g. CP2112).

    This affects both v1 and v2 uAPI.

    This fixes it partially by checking if gdev->chip is not NULL but it     doesn't entirely remedy the situation as we still have a race condition     in which another thread can remove the device after the check.

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:03628-1 advisory.

    The SUSE Linux Enterprise 15 SP4 kernel was updated to receive various security bugfixes.


    The following security bugs were fixed:

    - CVE-2022-49138: Bluetooth: hci_event: Fix checking conn for le_conn_complete_evt (bsc#1238160).
    - CVE-2022-49980: USB: gadget: fix use-after-free read in usb_udc_uevent() (bsc#1245110).
    - CVE-2022-50233: Bluetooth: eir: Fix using strlen with hdev->{dev_name,short_name} (bsc#1246968).
    - CVE-2022-50252: igb: Do not free q_vector unless new one was allocated (bsc#1249846).
    - CVE-2022-50409: net: If sock is dead do not access sock's sk_wq in sk_stream_wait_memory (bsc#1250392).
    - CVE-2023-53178: mm: fix zswap writeback race condition (bsc#1249827).
    - CVE-2023-53321: wifi: mac80211_hwsim: drop short frames (bsc#1250313).
    - CVE-2023-53438: x86/MCE: Always save CS register on AMD Zen IF Poison errors (bsc#1250180).
    - CVE-2025-23155: net: stmmac: Fix accessing freed irq affinity_hint (bsc#1242573).
    - CVE-2025-37738: ext4: ignore xattrs past end (bsc#1242846).
    - CVE-2025-37885: KVM: x86: Reset IRTE to host control if *new* route isn't postable (bsc#1242960).
    - CVE-2025-37958: mm/huge_memory: fix dereferencing invalid pmd migration entry (bsc#1243539).
    - CVE-2025-38014: dmaengine: idxd: Refactor remove call with idxd_cleanup() helper (bsc#1244732).
    - CVE-2025-38084: mm/hugetlb: unshare page tables during VMA split, not before (bsc#1245498).
    - CVE-2025-38085: mm/hugetlb: fix huge_pmd_unshare() vs GUP-fast race (bsc#1245499).
    - CVE-2025-38111: net/mdiobus: Fix potential out-of-bounds read/write access (bsc#1245666).
    - CVE-2025-38184: tipc: fix null-ptr-deref when acquiring remote ip of ethernet bearer (bsc#1245956).
    - CVE-2025-38380: i2c/designware: Fix an initialization issue (bsc#1247028).
    - CVE-2025-38470: net: vlan: fix VLAN 0 refcount imbalance of toggling filtering during runtime     (bsc#1247288).
    - CVE-2025-38476: rpl: Fix use-after-free in rpl_do_srh_inline() (bsc#1247317).
    - CVE-2025-38488: smb: client: fix use-after-free in crypt_message when using async crypto (bsc#1247239).
    - CVE-2025-38553: net/sched: Restrict conditions for adding duplicating netems to qdisc tree     (bsc#1248255).
    - CVE-2025-38572: ipv6: reject malicious packets in ipv6_gso_segment() (bsc#1248399).
    - CVE-2025-38659: gfs2: No more self recovery (bsc#1248639).
    - CVE-2025-38664: ice: Fix a null pointer dereference in ice_copy_and_init_pkg() (bsc#1248628).
    - CVE-2025-38678: netfilter: nf_tables: reject duplicate device on updates (bsc#1249126).
    - CVE-2025-38685: fbdev: Fix vmalloc out-of-bounds write in fast_imageblit (bsc#1249220).
    - CVE-2025-38706: ASoC: core: Check for rtd == NULL in snd_soc_remove_pcm_runtime() (bsc#1249195).
    - CVE-2025-38713: hfsplus: fix slab-out-of-bounds read in hfsplus_uni2asc() (bsc#1249200).
    - CVE-2025-38734: net/smc: fix UAF on smcsk after smc_listen_out() (bsc#1249324).
    - CVE-2025-39691: fs/buffer: fix use-after-free when call bh_read() helper (bsc#1249374).
    - CVE-2025-39703: net, hsr: reject HSR frame if skb can't hold tag (bsc#1249315).
    - CVE-2025-39726: s390/ism: fix concurrency management in ism_cmd() (bsc#1249266).
    - CVE-2025-39746: wifi: ath10k: shutdown driver when hardware is unreliable (bsc#1249516).
    - CVE-2025-39751: ALSA: hda/ca0132: Fix buffer overflow in add_tuning_control (bsc#1249538).
    - CVE-2025-39790: bus: mhi: host: Detect events pointing to unexpected TREs (bsc#1249548).
    - CVE-2025-39797: xfrm: xfrm_alloc_spi shouldn't use 0 as SPI (bsc#1249608).
    - CVE-2025-39823: KVM: x86: use array_index_nospec with indices that come from guest (bsc#1250002).
    - CVE-2025-39824: HID: asus: fix UAF via HID_CLAIMED_INPUT validation (bsc#1250007).
    - CVE-2025-39860: Bluetooth: Fix use-after-free in l2cap_sock_cleanup_listen() (bsc#1250247).
    - CVE-2025-39869: dmaengine: ti: edma: Fix memory allocation size for queue_priority_map (bsc#1250406).


Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:03615-1 advisory.

    The SUSE Linux Enterprise 15 SP5 kernel was updated to receive various security bugfixes.


    The following security bugs were fixed:

    - CVE-2022-49138: Bluetooth: hci_event: Fix checking conn for le_conn_complete_evt (bsc#1238160).
    - CVE-2022-50233: Bluetooth: eir: Fix using strlen with hdev->{dev_name,short_name} (bsc#1246968).
    - CVE-2022-50252: igb: Do not free q_vector unless new one was allocated (bsc#1249846).
    - CVE-2022-50409: net: If sock is dead do not access sock's sk_wq in sk_stream_wait_memory (bsc#1250392).
    - CVE-2023-53178: mm: fix zswap writeback race condition (bsc#1249827).
    - CVE-2023-53257: wifi: mac80211: check S1G action frame size (bsc#1249869).
    - CVE-2023-53321: wifi: mac80211_hwsim: drop short frames (bsc#1250313).
    - CVE-2023-53438: x86/MCE: Always save CS register on AMD Zen IF Poison errors (bsc#1250180).
    - CVE-2025-37738: ext4: ignore xattrs past end (bsc#1242846).
    - CVE-2025-37958: mm/huge_memory: fix dereferencing invalid pmd migration entry (bsc#1243539).
    - CVE-2025-38014: dmaengine: idxd: Refactor remove call with idxd_cleanup() helper (bsc#1244732).
    - CVE-2025-38111: net/mdiobus: Fix potential out-of-bounds read/write access (bsc#1245666).
    - CVE-2025-38380: i2c/designware: Fix an initialization issue (bsc#1247028).
    - CVE-2025-38488: smb: client: fix use-after-free in crypt_message when using async crypto (bsc#1247239).
    - CVE-2025-38553: net/sched: Restrict conditions for adding duplicating netems to qdisc tree     (bsc#1248255).
    - CVE-2025-38572: ipv6: reject malicious packets in ipv6_gso_segment() (bsc#1248399).
    - CVE-2025-38659: gfs2: No more self recovery (bsc#1248639).
    - CVE-2025-38664: ice: Fix a null pointer dereference in ice_copy_and_init_pkg() (bsc#1248628).
    - CVE-2025-38678: netfilter: nf_tables: reject duplicate device on updates (bsc#1249126).
    - CVE-2025-38685: fbdev: Fix vmalloc out-of-bounds write in fast_imageblit (bsc#1249220).
    - CVE-2025-38706: ASoC: core: Check for rtd == NULL in snd_soc_remove_pcm_runtime() (bsc#1249195).
    - CVE-2025-38713: hfsplus: fix slab-out-of-bounds read in hfsplus_uni2asc() (bsc#1249200).
    - CVE-2025-38734: net/smc: fix UAF on smcsk after smc_listen_out() (bsc#1249324).
    - CVE-2025-39691: fs/buffer: fix use-after-free when call bh_read() helper (bsc#1249374).
    - CVE-2025-39703: net, hsr: reject HSR frame if skb can't hold tag (bsc#1249315).
    - CVE-2025-39726: s390/ism: fix concurrency management in ism_cmd() (bsc#1249266).
    - CVE-2025-39746: wifi: ath10k: shutdown driver when hardware is unreliable (bsc#1249516).
    - CVE-2025-39751: ALSA: hda/ca0132: Fix buffer overflow in add_tuning_control (bsc#1249538).
    - CVE-2025-39790: bus: mhi: host: Detect events pointing to unexpected TREs (bsc#1249548).
    - CVE-2025-39823: KVM: x86: use array_index_nospec with indices that come from guest (bsc#1250002).
    - CVE-2025-39824: HID: asus: fix UAF via HID_CLAIMED_INPUT validation (bsc#1250007).
    - CVE-2025-39860: Bluetooth: Fix use-after-free in l2cap_sock_cleanup_listen() (bsc#1250247).
    - CVE-2025-39869: dmaengine: ti: edma: Fix memory allocation size for queue_priority_map (bsc#1250406).


Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - gpiolib: cdev: fix NULL-pointer dereferences There are several places where we can crash the kernel by     requesting lines, unbinding the GPIO device, then calling any of the system calls relevant to the GPIO     character device's annonymous file descriptors: ioctl(), read(), poll(). While I observed it with the GPIO     simulator, it will also happen for any of the GPIO devices that can be hot-unplugged - for instance any     HID GPIO expander (e.g. CP2112). This affects both v1 and v2 uAPI. This fixes it partially by checking if     gdev->chip is not NULL but it doesn't entirely remedy the situation as we still have a race condition in     which another thread can remove the device after the check. (CVE-2022-50453)

Note that Nessus relies on the presence of the package as reported by the vendor.

An update of the linux package has been released.

ID	Name	Product	Family	Severity
301628	EulerOS 2.0 SP13 : kernel (EulerOS-SA-2026-1280)	Nessus	Huawei Local Security Checks	high
301595	EulerOS 2.0 SP13 : kernel (EulerOS-SA-2026-1244)	Nessus	Huawei Local Security Checks	high
301001	Unity Linux 20.1070a Security Update: kernel (UTSA-2026-005634)	Nessus	Unity Linux Local Security Checks	medium
300712	Unity Linux 20.1070e Security Update: kernel (UTSA-2026-005425)	Nessus	Unity Linux Local Security Checks	medium
270857	SUSE SLES15 Security Update : kernel (SUSE-SU-2025:03628-1)	Nessus	SuSE Local Security Checks	high
270837	SUSE SLES15 Security Update : kernel (SUSE-SU-2025:03615-1)	Nessus	SuSE Local Security Checks	high
269645	Linux Distros Unpatched Vulnerability : CVE-2022-50453	Nessus	Misc.	medium
171216	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2023-026 (ALASKERNEL-5.10-2023-026)	Nessus	Amazon Linux Local Security Checks	high
170458	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2023-012 (ALASKERNEL-5.15-2023-012)	Nessus	Amazon Linux Local Security Checks	high
151965	Photon OS 4.0: Linux PHSA-2021-4.0-0065	Nessus	PhotonOS Local Security Checks	high

Detections

Analytics

CVE-2022-50453

medium

Tenable Plugins

high

high

medium

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high

high

medium

high

high

high