In the Linux kernel, the following vulnerability has been resolved: mm/damon/sysfs: fix wrong empty schemes assumption under online tuning in damon_sysfs_set_schemes() Commit da87878010e5 ("mm/damon/sysfs: support online inputs update") made 'damon_sysfs_set_schemes()' to be called for running DAMON context, which could have schemes. In the case, DAMON sysfs interface is supposed to update, remove, or add schemes to reflect the sysfs files. However, the code is assuming the DAMON context wouldn't have schemes at all, and therefore creates and adds new schemes. As a result, the code doesn't work as intended for online schemes tuning and could have more than expected memory footprint. The schemes are all in the DAMON context, so it doesn't leak the memory, though. Remove the wrong asssumption (the DAMON context wouldn't have schemes) in 'damon_sysfs_set_schemes()' to fix the bug.

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: mm/damon/sysfs: fix wrong empty     schemes assumption under online tuning in damon_sysfs_set_schemes() Commit da87878010e5 (mm/damon/sysfs:
    support online inputs update) made 'damon_sysfs_set_schemes()' to be called for running DAMON context,     which could have schemes. In the case, DAMON sysfs interface is supposed to update, remove, or add schemes     to reflect the sysfs files. However, the code is assuming the DAMON context wouldn't have schemes at all,     and therefore creates and adds new schemes. As a result, the code doesn't work as intended for online     schemes tuning and could have more than expected memory footprint. The schemes are all in the DAMON     context, so it doesn't leak the memory, though. Remove the wrong asssumption (the DAMON context wouldn't     have schemes) in 'damon_sysfs_set_schemes()' to fix the bug. (CVE-2022-48996)

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

The version of kernel installed on the remote host is prior to 5.10.157-139.675. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2022-024 advisory.

    A flaw was found in the Linux kernel. A denial of service flaw may occur if there is a consecutive request     of the NVME_IOCTL_RESET and the NVME_IOCTL_SUBSYS_RESET through the device file of the driver, resulting     in a PCIe link disconnect. (CVE-2022-3169)

    An incorrect TLB flush issue was found in the Linux kernel's GPU i915 kernel driver, potentially leading     to random memory corruption or data leaks. This flaw could allow a local user to crash the system or     escalate their privileges on the system. (CVE-2022-4139)

    An issue was discovered in the Linux kernel 5.10.x before 5.10.155. A use-after-free in io_sqpoll_wait_sq     in fs/io_uring.c allows an attacker to crash the kernel, resulting in denial of service. finish_wait can     be skipped. An attack can occur in some situations by forking a process and then quickly terminating it.
    NOTE: later kernel versions, such as the 5.15 longterm series, substantially changed the implementation of     io_sqpoll_wait_sq. (CVE-2022-47946)

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

    mm/damon/sysfs: fix wrong empty schemes assumption under online tuning in damon_sysfs_set_schemes()     (CVE-2022-48996)

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

    gfs2: Check sb_bsize_shift after reading superblock (CVE-2022-49769)

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

    ceph: avoid putting the realm twice when decoding snaps fails (CVE-2022-49770)

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

    dm ioctl: fix misbehavior if list_versions races with module loading (CVE-2022-49771)

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

    macvlan: enforce a consistent minimal mtu (CVE-2022-49776)

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

    Input: i8042 - fix leaking of platform device on module removal (CVE-2022-49777)

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

    kprobes: Skip clearing aggrprobe's post_handler in kprobe-on-ftrace case (CVE-2022-49779)

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

    scsi: target: tcm_loop: Fix possible name leak in tcm_loop_setup_hba_bus() (CVE-2022-49780)

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

    mmc: sdhci-pci: Fix possible memory leak caused by missing pci_dev_put() (CVE-2022-49787)

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

    misc/vmw_vmci: fix an infoleak in vmci_host_do_receive_datagram() (CVE-2022-49788)

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

    ftrace: Fix null pointer dereference in ftrace_add_mod() (CVE-2022-49802)

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

    drbd: use after free in drbd_create_device() (CVE-2022-49811)

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

    bridge: switchdev: Fix memory leaks when changing VLAN protocol (CVE-2022-49812)

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

    kcm: close race conditions on sk_receive_queue (CVE-2022-49814)

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

    ata: libata-transport: fix error handling in ata_tdev_add() (CVE-2022-49823)

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

    ata: libata-transport: fix error handling in ata_tlink_add() (CVE-2022-49824)

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

    ata: libata-transport: fix error handling in ata_tport_add() (CVE-2022-49825)

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

    ata: libata-transport: fix double ata_host_put() in ata_tport_add() (CVE-2022-49826)

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

    drm: Fix potential null-ptr-deref in drm_vblank_destroy_worker() (CVE-2022-49827)

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

    drm/drv: Fix potential memory leak in drm_dev_init() (CVE-2022-49830)

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

    pinctrl: devicetree: fix null pointer dereferencing in pinctrl_dt_to_map (CVE-2022-49832)

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

    sctp: clear out_curr if all frag chunks of current msg are pruned (CVE-2022-49838)

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

    scsi: scsi_transport_sas: Fix error handling in sas_phy_add() (CVE-2022-49839)

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

    bpf, test_run: Fix alignment problem in bpf_prog_test_run_skb() (CVE-2022-49840)

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

    ASoC: core: Fix use-after-free in snd_soc_exit() (CVE-2022-49842)

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.

ID	Name	Product	Family	Severity
248862	Linux Distros Unpatched Vulnerability : CVE-2022-48996	Nessus	Misc.	medium
239190	TencentOS Server 4: kernel (TSSA-2024:0979)	Nessus	Tencent Local Security Checks	high
168728	Amazon Linux 2 : kernel (ALASKERNEL-5.10-2022-024)	Nessus	Amazon Linux Local Security Checks	high

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