In the Linux kernel, the following vulnerability has been resolved: btrfs: do not clean up repair bio if submit fails The submit helper will always run bio_endio() on the bio if it fails to submit, so cleaning up the bio just leads to a variety of use-after-free and NULL pointer dereference bugs because we race with the endio function that is cleaning up the bio. Instead just return BLK_STS_OK as the repair function has to continue to process the rest of the pages, and the endio for the repair bio will do the appropriate cleanup for the page that it was given.

The version of kernel installed on the remote host is prior to 5.10.236-228.935. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2025-091 advisory.

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

    btrfs: do not clean up repair bio if submit fails (CVE-2022-49168)

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

    smb: client: fix UAF in smb2_reconnect_server() (CVE-2024-35870)

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

    smb: client: fix use-after-free of signing key (CVE-2024-53179)

Tenable has extracted the preceding description block directly from the tested product 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 version of kernel installed on the remote host is prior to 4.14.355-277.643. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2025-2854 advisory.

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

    btrfs: do not clean up repair bio if submit fails (CVE-2022-49168)

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

    bfq: Update cgroup information before merging bio (CVE-2022-49413)

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

    blk-throttle: Set BIO_THROTTLED when bio has been throttled (CVE-2022-49465)

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

    vlan: enforce underlying device type (CVE-2025-21920)

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

    net: atm: fix use after free in lec_send() (CVE-2025-22004)

Tenable has extracted the preceding description block directly from the tested product 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 version of kernel installed on the remote host is prior to 5.15.180-123.192. It is, therefore, affected by a vulnerability as referenced in the ALAS2KERNEL-5.15-2025-071 advisory.

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

    btrfs: do not clean up repair bio if submit fails (CVE-2022-49168)

Tenable has extracted the preceding description block directly from the tested product 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 version of kernel installed on the remote host is prior to 4.14.355-196.643. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2025-1977 advisory.

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

    btrfs: do not clean up repair bio if submit fails (CVE-2022-49168)

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

    bfq: Update cgroup information before merging bio (CVE-2022-49413)

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

    blk-throttle: Set BIO_THROTTLED when bio has been throttled (CVE-2022-49465)

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

    vlan: enforce underlying device type (CVE-2025-21920)

Tenable has extracted the preceding description block directly from the tested product 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.

  - In the Linux kernel, the following vulnerability has been resolved: btrfs: do not clean up repair bio if     submit fails The submit helper will always run bio_endio() on the bio if it fails to submit, so cleaning     up the bio just leads to a variety of use-after-free and NULL pointer dereference bugs because we race     with the endio function that is cleaning up the bio. Instead just return BLK_STS_OK as the repair function     has to continue to process the rest of the pages, and the endio for the repair bio will do the appropriate     cleanup for the page that it was given. (CVE-2022-49168)

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

ID	Name	Product	Family	Severity
235901	Amazon Linux 2 : kernel (ALASKERNEL-5.10-2025-091)	Nessus	Amazon Linux Local Security Checks	high
235895	Amazon Linux 2 : kernel (ALAS-2025-2854)	Nessus	Amazon Linux Local Security Checks	high
235890	Amazon Linux 2 : kernel (ALASKERNEL-5.15-2025-071)	Nessus	Amazon Linux Local Security Checks	high
235787	Amazon Linux AMI : kernel (ALAS-2025-1977)	Nessus	Amazon Linux Local Security Checks	high
225577	Linux Distros Unpatched Vulnerability : CVE-2022-49168	Nessus	Misc.	high

Detections

Analytics

CVE-2022-49168

high

Tenable Plugins

high

high

high

high

high