In the Linux kernel, the following vulnerability has been resolved: video: fbdev: cirrusfb: check pixclock to avoid divide by zero Do a sanity check on pixclock value to avoid divide by zero. If the pixclock value is zero, the cirrusfb driver will round up pixclock to get the derived frequency as close to maxclock as possible. Syzkaller reported a divide error in cirrusfb_check_pixclock. divide error: 0000 [#1] SMP KASAN PTI CPU: 0 PID: 14938 Comm: cirrusfb_test Not tainted 5.15.0-rc6 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2 RIP: 0010:cirrusfb_check_var+0x6f1/0x1260 Call Trace: fb_set_var+0x398/0xf90 do_fb_ioctl+0x4b8/0x6f0 fb_ioctl+0xeb/0x130 __x64_sys_ioctl+0x19d/0x220 do_syscall_64+0x3a/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988729 advisory.

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

    video: fbdev: cirrusfb: check pixclock to avoid divide by zero

    Do a sanity check on pixclock value to avoid divide by zero.

    If the pixclock value is zero, the cirrusfb driver will round up     pixclock to get the derived frequency as close to maxclock as     possible.

    Syzkaller reported a divide error in cirrusfb_check_pixclock.

    divide error: 0000 [#1] SMP KASAN PTI     CPU: 0 PID: 14938 Comm: cirrusfb_test Not tainted 5.15.0-rc6 #1     Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2     RIP: 0010:cirrusfb_check_var+0x6f1/0x1260

    Call Trace:
     fb_set_var+0x398/0xf90      do_fb_ioctl+0x4b8/0x6f0      fb_ioctl+0xeb/0x130
     __x64_sys_ioctl+0x19d/0x220      do_syscall_64+0x3a/0x80      entry_SYSCALL_64_after_hwframe+0x44/0xae

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-2025-990151 advisory.

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

    video: fbdev: cirrusfb: check pixclock to avoid divide by zero

    Do a sanity check on pixclock value to avoid divide by zero.

    If the pixclock value is zero, the cirrusfb driver will round up     pixclock to get the derived frequency as close to maxclock as     possible.

    Syzkaller reported a divide error in cirrusfb_check_pixclock.

    divide error: 0000 [#1] SMP KASAN PTI     CPU: 0 PID: 14938 Comm: cirrusfb_test Not tainted 5.15.0-rc6 #1     Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2     RIP: 0010:cirrusfb_check_var+0x6f1/0x1260

    Call Trace:
     fb_set_var+0x398/0xf90      do_fb_ioctl+0x4b8/0x6f0      fb_ioctl+0xeb/0x130
     __x64_sys_ioctl+0x19d/0x220      do_syscall_64+0x3a/0x80      entry_SYSCALL_64_after_hwframe+0x44/0xae

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-2025-986464 advisory.

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

    video: fbdev: cirrusfb: check pixclock to avoid divide by zero

    Do a sanity check on pixclock value to avoid divide by zero.

    If the pixclock value is zero, the cirrusfb driver will round up     pixclock to get the derived frequency as close to maxclock as     possible.

    Syzkaller reported a divide error in cirrusfb_check_pixclock.

    divide error: 0000 [#1] SMP KASAN PTI     CPU: 0 PID: 14938 Comm: cirrusfb_test Not tainted 5.15.0-rc6 #1     Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2     RIP: 0010:cirrusfb_check_var+0x6f1/0x1260

    Call Trace:
     fb_set_var+0x398/0xf90      do_fb_ioctl+0x4b8/0x6f0      fb_ioctl+0xeb/0x130
     __x64_sys_ioctl+0x19d/0x220      do_syscall_64+0x3a/0x80      entry_SYSCALL_64_after_hwframe+0x44/0xae

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-2025-987129 advisory.

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

    video: fbdev: cirrusfb: check pixclock to avoid divide by zero

    Do a sanity check on pixclock value to avoid divide by zero.

    If the pixclock value is zero, the cirrusfb driver will round up     pixclock to get the derived frequency as close to maxclock as     possible.

    Syzkaller reported a divide error in cirrusfb_check_pixclock.

    divide error: 0000 [#1] SMP KASAN PTI     CPU: 0 PID: 14938 Comm: cirrusfb_test Not tainted 5.15.0-rc6 #1     Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2     RIP: 0010:cirrusfb_check_var+0x6f1/0x1260

    Call Trace:
     fb_set_var+0x398/0xf90      do_fb_ioctl+0x4b8/0x6f0      fb_ioctl+0xeb/0x130
     __x64_sys_ioctl+0x19d/0x220      do_syscall_64+0x3a/0x80      entry_SYSCALL_64_after_hwframe+0x44/0xae

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-2025:1263-1 advisory.

    The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various security bugfixes.

    The following security bugs were fixed:

    - CVE-2021-47248: udp: fix race between close() and udp_abort() (bsc#1224867).
    - CVE-2022-49051: net: usb: aqc111: Fix out-of-bounds accesses in RX fixup (bsc#1237903).
    - CVE-2022-49053: scsi: target: tcmu: Fix possible page UAF (bsc#1237918).
    - CVE-2022-49275: can: m_can: m_can_tx_handler(): fix use after free of skb (bsc#1238719).
    - CVE-2022-49413: bfq: Update cgroup information before merging bio (bsc#1238710).
    - CVE-2022-49465: blk-throttle: Set BIO_THROTTLED when bio has been throttled (bsc#1238919).
    - CVE-2022-49545: ALSA: usb-audio: Cancel pending work at closing a MIDI substream (bsc#1238729).
    - CVE-2022-49563: crypto: qat - add param check for RSA (bsc#1238787).
    - CVE-2022-49564: crypto: qat - add param check for DH (bsc#1238789).
    - CVE-2022-49739: gfs2: Always check inode size of inline inodes (bsc#1240207).
    - CVE-2023-52935: mm/khugepaged: fix ->anon_vma race (bsc#1240276).
    - CVE-2024-56642: tipc: Fix use-after-free of kernel socket in cleanup_bearer() (bsc#1235433).
    - CVE-2024-56651: can: hi311x: hi3110_can_ist(): fix potential use-after-free (bsc#1235528).
    - CVE-2024-57996: net_sched: sch_sfq: do not allow 1 packet limit (bsc#1239076).
    - CVE-2024-58014: wifi: brcmsmac: add gain range check to wlc_phy_iqcal_gainparams_nphy() (bsc#1239109).
    - CVE-2025-21772: partitions: mac: fix handling of bogus partition table (bsc#1238911).
    - CVE-2025-21780: drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table() (bsc#1239115).


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-2025:1241-1 advisory.

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

    The following security bugs were fixed:

    - CVE-2022-49053: scsi: target: tcmu: Fix possible page UAF (bsc#1237918).
    - CVE-2022-49465: blk-throttle: Set BIO_THROTTLED when bio has been throttled (bsc#1238919).
    - CVE-2022-49739: gfs2: Always check inode size of inline inodes (bsc#1240207).
    - CVE-2023-52935: mm/khugepaged: fix ->anon_vma race (bsc#1240276).
    - CVE-2024-53124: net: fix data-races around sk->sk_forward_alloc (bsc#1234074).
    - CVE-2024-53176: smb: During unmount, ensure all cached dir instances drop their dentry (bsc#1234894).
    - CVE-2024-53178: smb: Do not leak cfid when reconnect races with open_cached_dir (bsc#1234895).
    - CVE-2024-56651: can: hi311x: hi3110_can_ist(): fix potential use-after-free (bsc#1235528).
    - CVE-2024-57996: net_sched: sch_sfq: do not allow 1 packet limit (bsc#1239076).
    - CVE-2024-58013: Bluetooth: MGMT: Fix slab-use-after-free Read in mgmt_remove_adv_monitor_sync     (bsc#1239095).
    - CVE-2024-58014: wifi: brcmsmac: add gain range check to wlc_phy_iqcal_gainparams_nphy() (bsc#1239109).
    - CVE-2025-21693: mm: zswap: properly synchronize freeing resources during CPU hotunplug (bsc#1237029).
    - CVE-2025-21718: net: rose: fix timer races against user threads (bsc#1239073).
    - CVE-2025-21772: partitions: mac: fix handling of bogus partition table (bsc#1238911).
    - CVE-2025-21780: drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table() (bsc#1239115).


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-2025:1027-1 advisory.

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


    The following security bugs were fixed:

    - CVE-2024-2201: Fixed information leak in x86/BHI (bsc#1217339).
    - CVE-2024-41092: drm/i915/gt: Fix potential UAF by revoke of fence registers (bsc#1228483).
    - CVE-2024-42098: crypto: ecdh - explicitly zeroize private_key (bsc#1228779).
    - CVE-2024-42229: crypto: aead,cipher - zeroize key buffer after use (bsc#1228708).
    - CVE-2024-57996: net_sched: sch_sfq: do not allow 1 packet limit (bsc#1239076).
    - CVE-2024-58014: wifi: brcmsmac: add gain range check to wlc_phy_iqcal_gainparams_nphy() (bsc#1239109).
    - CVE-2025-21718: net: rose: fix timer races against user threads (bsc#1239073).
    - CVE-2025-21780: drm/amdgpu: avoid buffer overflow attach in smu_sys_set_pp_table() (bsc#1239115).


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.

  - video: fbdev: cirrusfb: check pixclock to avoid divide by zero Do a sanity check on pixclock value to     avoid divide by zero. If the pixclock value is zero, the cirrusfb driver will round up pixclock to get the     derived frequency as close to maxclock as possible. Syzkaller reported a divide error in     cirrusfb_check_pixclock. divide error: 0000 [#1] SMP KASAN PTI CPU: 0 PID: 14938 Comm: cirrusfb_test Not     tainted 5.15.0-rc6 #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.11.0-2 RIP:
    0010:cirrusfb_check_var+0x6f1/0x1260 Call Trace: fb_set_var+0x398/0xf90 do_fb_ioctl+0x4b8/0x6f0     fb_ioctl+0xeb/0x130 __x64_sys_ioctl+0x19d/0x220 do_syscall_64+0x3a/0x80     entry_SYSCALL_64_after_hwframe+0x44/0xae (CVE-2021-47641)

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

ID	Name	Product	Family	Severity
275906	TencentOS Server 4: kernel (TSSA-2025:0346)	Nessus	Tencent Local Security Checks	high
274019	Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988729)	Nessus	Unity Linux Local Security Checks	medium
272500	Unity Linux 20.1050e Security Update: kernel (UTSA-2025-990151)	Nessus	Unity Linux Local Security Checks	medium
268447	Unity Linux 20.1070a Security Update: kernel (UTSA-2025-986464)	Nessus	Unity Linux Local Security Checks	medium
268061	Unity Linux 20.1070e Security Update: kernel (UTSA-2025-987129)	Nessus	Unity Linux Local Security Checks	medium
234484	SUSE SLES15 Security Update : kernel (SUSE-SU-2025:1263-1)	Nessus	SuSE Local Security Checks	high
234407	SUSE SLES15 Security Update : kernel (SUSE-SU-2025:1241-1)	Nessus	SuSE Local Security Checks	high
233410	SUSE SLES15 Security Update : kernel (SUSE-SU-2025:1027-1)	Nessus	SuSE Local Security Checks	high
224342	Linux Distros Unpatched Vulnerability : CVE-2021-47641	Nessus	Misc.	medium

Detections

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CVE-2021-47641

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Tenable Plugins

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