In the Linux kernel, the following vulnerability has been resolved: ubi: Fix race condition between ctrl_cdev_ioctl and ubi_cdev_ioctl Hulk Robot reported a KASAN report about use-after-free: ================================================================== BUG: KASAN: use-after-free in __list_del_entry_valid+0x13d/0x160 Read of size 8 at addr ffff888035e37d98 by task ubiattach/1385 [...] Call Trace: klist_dec_and_del+0xa7/0x4a0 klist_put+0xc7/0x1a0 device_del+0x4d4/0xed0 cdev_device_del+0x1a/0x80 ubi_attach_mtd_dev+0x2951/0x34b0 [ubi] ctrl_cdev_ioctl+0x286/0x2f0 [ubi] Allocated by task 1414: device_add+0x60a/0x18b0 cdev_device_add+0x103/0x170 ubi_create_volume+0x1118/0x1a10 [ubi] ubi_cdev_ioctl+0xb7f/0x1ba0 [ubi] Freed by task 1385: cdev_device_del+0x1a/0x80 ubi_remove_volume+0x438/0x6c0 [ubi] ubi_cdev_ioctl+0xbf4/0x1ba0 [ubi] [...] ================================================================== The lock held by ctrl_cdev_ioctl is ubi_devices_mutex, but the lock held by ubi_cdev_ioctl is ubi->device_mutex. Therefore, the two locks can be concurrent. ctrl_cdev_ioctl contains two operations: ubi_attach and ubi_detach. ubi_detach is bug-free because it uses reference counting to prevent concurrency. However, uif_init and uif_close in ubi_attach may race with ubi_cdev_ioctl. uif_init will race with ubi_cdev_ioctl as in the following stack. cpu1 cpu2 cpu3 _______________________|________________________|______________________ ctrl_cdev_ioctl ubi_attach_mtd_dev uif_init ubi_cdev_ioctl ubi_create_volume cdev_device_add ubi_add_volume // sysfs exist kill_volumes ubi_cdev_ioctl ubi_remove_volume cdev_device_del // first free ubi_free_volume cdev_del // double free cdev_device_del And uif_close will race with ubi_cdev_ioctl as in the following stack. cpu1 cpu2 cpu3 _______________________|________________________|______________________ ctrl_cdev_ioctl ubi_attach_mtd_dev uif_init ubi_cdev_ioctl ubi_create_volume cdev_device_add ubi_debugfs_init_dev //error goto out_uif; uif_close kill_volumes ubi_cdev_ioctl ubi_remove_volume cdev_device_del // first free ubi_free_volume // double free The cause of this problem is that commit 714fb87e8bc0 make device "available" before it becomes accessible via sysfs. Therefore, we roll back the modification. We will fix the race condition between ubi device creation and udev by removing ubi_get_device in vol_attribute_show and dev_attribute_show.This avoids accessing uninitialized ubi_devices[ubi_num]. ubi_get_device is used to prevent devices from being deleted during sysfs execution. However, now kernfs ensures that devices will not be deleted before all reference counting are released. The key process is shown in the following stack. device_del device_remove_attrs device_remove_groups sysfs_remove_groups sysfs_remove_group remove_files kernfs_remove_by_name kernfs_remove_by_name_ns __kernfs_remove kernfs_drain

The remote SUSE Linux SLES12 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2025:0834-1 advisory.

    The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security bugfixes.

    The following security bugs were fixed:

    - CVE-2021-22543: Fixed improper handling of VM_IO|VM_PFNMAP vmas in KVM (bsc#1186482).
    - CVE-2021-47634: ubi: Fix race condition between ctrl_cdev_ioctl and ubi_cdev_ioctl (bsc#1237758).
    - CVE-2021-47644: media: staging: media: zoran: move videodev alloc (bsc#1237766).
    - CVE-2022-48953: rtc: cmos: fix build on non-ACPI platforms (bsc#1231941).
    - CVE-2022-48975: gpiolib: fix memory leak in gpiochip_setup_dev() (bsc#1231885).
    - CVE-2022-49006: tracing: Free buffers when a used dynamic event is removed (bsc#1232163).
    - CVE-2022-49076: RDMA/hfi1: Fix use-after-free bug for mm struct (bsc#1237738).
    - CVE-2022-49080: mm/mempolicy: fix mpol_new leak in shared_policy_replace (bsc#1238033).
    - CVE-2022-49089: IB/rdmavt: add lock to call to rvt_error_qp to prevent a race condition (bsc#1238041).
    - CVE-2022-49124: x86/mce: Work around an erratum on fast string copy instructions (bsc#1238148).
    - CVE-2022-49134: mlxsw: spectrum: Guard against invalid local ports (bsc#1237982).
    - CVE-2022-49135: drm/amd/display: Fix memory leak (bsc#1238006).
    - CVE-2022-49151: can: mcba_usb: properly check endpoint type (bsc#1237778).
    - CVE-2022-49178: memstick/mspro_block: fix handling of read-only devices (bsc#1238107).
    - CVE-2022-49182: net: hns3: add vlan list lock to protect vlan list (bsc#1238260).
    - CVE-2022-49201: ibmvnic: fix race between xmit and reset (bsc#1238256).
    - CVE-2022-49247: media: stk1160: If start stream fails, return buffers with VB2_BUF_STATE_QUEUED     (bsc#1237783).
    - CVE-2022-49490: drm/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is (bsc#1238275).
    - CVE-2022-49626: sfc: fix use after free when disabling sriov (bsc#1238270).
    - CVE-2022-49661: can: gs_usb: gs_usb_open/close(): fix memory leak (bsc#1237788).
    - CVE-2023-52572: Fixed UAF in cifs_demultiplex_thread() in cifs (bsc#1220946).
    - CVE-2023-52853: hid: cp2112: Fix duplicate workqueue initialization (bsc#1224988).
    - CVE-2023-52924: netfilter: nf_tables: do not skip expired elements during walk (bsc#1236821).
    - CVE-2023-6606: Fixed an out of bounds read in the SMB client when receiving a malformed length from a     server (bsc#1217947).
    - CVE-2024-23307: Fixed Integer Overflow or Wraparound vulnerability in x86 and ARM md, raid, raid5     modules (bsc#1219169).
    - CVE-2024-27397: netfilter: nf_tables: use timestamp to check for set element timeout (bsc#1224095).
    - CVE-2024-49963: mailbox: bcm2835: Fix timeout during suspend mode (bsc#1232147).
    - CVE-2024-49975: uprobes: fix kernel info leak via '[uprobes]' vma (bsc#1232104).
    - CVE-2024-50036: net: do not delay dst_entries_add() in dst_release() (bsc#1231912).
    - CVE-2024-50067: uprobe: avoid out-of-bounds memory access of fetching args (bsc#1232416).
    - CVE-2024-50251: netfilter: nft_payload: sanitize offset and length before calling skb_checksum()     (bsc#1233248).
    - CVE-2024-50304: ipv4: ip_tunnel: Fix suspicious RCU usage warning in ip_tunnel_find() (bsc#1233522).
    - CVE-2024-53217: nfsd: restore callback functionality for NFSv4.0 (bsc#1234999).
    - CVE-2024-56633: bpf, sockmap: Fix repeated calls to sock_put() when msg has more_data (bsc#1235485).
    - CVE-2024-56647: net: Fix icmp host relookup triggering ip_rt_bug (bsc#1235435).
    - CVE-2024-56658: net: defer final 'struct net' free in netns dismantle (bsc#1235441).
    - CVE-2024-56688: sunrpc: clear XPRT_SOCK_UPD_TIMEOUT when reset transport (bsc#1235538).
    - CVE-2025-21638: sctp: sysctl: auth_enable: avoid using current->nsproxy (bsc#1236115).
    - CVE-2025-21639: sctp: sysctl: rto_min/max: avoid using current->nsproxy (bsc#1236122).
    - CVE-2025-21640: sctp: sysctl: cookie_hmac_alg: avoid using current->nsproxy (bsc#1236123).
    - CVE-2025-21673: smb: client: fix double free of TCP_Server_Info::hostname (bsc#1236689).
    - CVE-2025-21689: USB: serial: quatech2: fix null-ptr-deref in qt2_process_read_urb() (bsc#1237017).
    - CVE-2025-21690: scsi: storvsc: Ratelimit warning logs to prevent VM denial of service (bsc#1237025).
    - CVE-2025-21700: net: sched: Disallow replacing of child qdisc from one parent to another (bsc#1237159).
    - CVE-2025-21753: btrfs: fix use-after-free when attempting to join an aborted transaction (bsc#1237875).


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.

  - In the Linux kernel, the following vulnerability has been resolved: ubi: Fix race condition between     ctrl_cdev_ioctl and ubi_cdev_ioctl Hulk Robot reported a KASAN report about use-after-free:
    ================================================================== BUG: KASAN: use-after-free in
    __list_del_entry_valid+0x13d/0x160 Read of size 8 at addr ffff888035e37d98 by task ubiattach/1385 [...]     Call Trace: klist_dec_and_del+0xa7/0x4a0 klist_put+0xc7/0x1a0 device_del+0x4d4/0xed0     cdev_device_del+0x1a/0x80 ubi_attach_mtd_dev+0x2951/0x34b0 [ubi] ctrl_cdev_ioctl+0x286/0x2f0 [ubi]     Allocated by task 1414: device_add+0x60a/0x18b0 cdev_device_add+0x103/0x170     ubi_create_volume+0x1118/0x1a10 [ubi] ubi_cdev_ioctl+0xb7f/0x1ba0 [ubi] Freed by task 1385:
    cdev_device_del+0x1a/0x80 ubi_remove_volume+0x438/0x6c0 [ubi] ubi_cdev_ioctl+0xbf4/0x1ba0 [ubi] [...]     ================================================================== The lock held by ctrl_cdev_ioctl is     ubi_devices_mutex, but the lock held by ubi_cdev_ioctl is ubi->device_mutex. Therefore, the two locks can     be concurrent. ctrl_cdev_ioctl contains two operations: ubi_attach and ubi_detach. ubi_detach is bug-free     because it uses reference counting to prevent concurrency. However, uif_init and uif_close in ubi_attach     may race with ubi_cdev_ioctl. uif_init will race with ubi_cdev_ioctl as in the following stack. cpu1 cpu2     cpu3 _______________________|________________________|______________________ ctrl_cdev_ioctl     ubi_attach_mtd_dev uif_init ubi_cdev_ioctl ubi_create_volume cdev_device_add ubi_add_volume // sysfs exist     kill_volumes ubi_cdev_ioctl ubi_remove_volume cdev_device_del // first free ubi_free_volume cdev_del //     double free cdev_device_del And uif_close will race with ubi_cdev_ioctl as in the following stack. cpu1     cpu2 cpu3 _______________________|________________________|______________________ ctrl_cdev_ioctl     ubi_attach_mtd_dev uif_init ubi_cdev_ioctl ubi_create_volume cdev_device_add ubi_debugfs_init_dev //error     goto out_uif; uif_close kill_volumes ubi_cdev_ioctl ubi_remove_volume cdev_device_del // first free     ubi_free_volume // double free The cause of this problem is that commit 714fb87e8bc0 make device     available before it becomes accessible via sysfs. Therefore, we roll back the modification. We will fix     the race condition between ubi device creation and udev by removing ubi_get_device in vol_attribute_show     and dev_attribute_show.This avoids accessing uninitialized ubi_devices[ubi_num]. ubi_get_device is used to     prevent devices from being deleted during sysfs execution. However, now kernfs ensures that devices will     not be deleted before all reference counting are released. The key process is shown in the following     stack. device_del device_remove_attrs device_remove_groups sysfs_remove_groups sysfs_remove_group     remove_files kernfs_remove_by_name kernfs_remove_by_name_ns __kernfs_remove kernfs_drain (CVE-2021-47634)

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 5.4.190-107.353. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2024-076 advisory.

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

    ubi: Fix race condition between ctrl_cdev_ioctl and ubi_cdev_ioctl (CVE-2021-47634)

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

    Revert Revert block, bfq: honor already-setup queue merges (CVE-2021-47646)

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

    ASoC: soc-compress: prevent the potentially use of null pointer (CVE-2021-47650)

    When the KVM updates the guest's page table entry, it will first use get_user_pages_fast() to pin the     page, and when it fails (e.g. the vma->flags has VM_IO or VM_PFNMAP), it will get corresponding VMA where     the page lies in through find_vma_intersection(), calculate the physical address, and map the page to the     kernel virtual address through memremap(), and finally, write the update.The problem is that when we get     the vma through find_vma_intersection(), only VM_PFNMAP is checked, not both VM_IO and VM_PFNMAP. In the     reproducer below, after the KVM_SET_USER_MEMORY_REGION is completed, we replace the guest's memory mapping     with the kernel-user shared region of io_uring and then perform the KVM_TRANSLATE operation, which finally     triggers the page table entry update. Now, memremap() will return page_offset_base (direct mapping of all     physical memory) + vaddr (the linear address of KVM_TRANSLATE) + vm_pgoff (the offset when io_uring     performs mmap(2)), and use the return value as the base address for CMPXCHG (write 0x21 in this case).
    Since both vaddr and vm_pgoff are controllable by the user-mode process, writing may exceed the previously     mapped guest memory space and trigger exceptions such as UAF. The vulnerability shares similarities with     CVE-2021-22543. (CVE-2022-1158)

    A vulnerability was found in the pfkey_register function in net/key/af_key.c in the Linux kernel. This     flaw allows a local, unprivileged user to gain access to kernel memory, leading to a system crash or a     leak of internal kernel information. (CVE-2022-1353)

    A flaw was found in the Linux kernel implementation of proxied virtualized TPM devices. On a system where     virtualized TPM devices are configured (this is not the default) a local attacker can create a use-after-     free and create a situation where it may be possible to escalate privileges on the system. (CVE-2022-2977)

    A flaw was found in the Linux kernel. A NULL pointer dereference may occur while a slip driver is in     progress to detach in sl_tx_timeout in drivers/net/slip/slip.c. This issue could allow an attacker to     crash the system or leak internal kernel information. (CVE-2022-41858)

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

    swiotlb: fix info leak with DMA_FROM_DEVICE (CVE-2022-48853)

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

    dm integrity: fix memory corruption when tag_size is less than digest size (CVE-2022-49044)

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

    scsi: target: tcmu: Fix possible page UAF (CVE-2022-49053)

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

    mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0) (CVE-2022-49077)

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

    lz4: fix LZ4_decompress_safe_partial read out of bound (CVE-2022-49078)

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

    mm/mempolicy: fix mpol_new leak in shared_policy_replace (CVE-2022-49080)

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

    qede: confirm skb is allocated before using (CVE-2022-49084)

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

    drbd: Fix five use after free bugs in get_initial_state (CVE-2022-49085)

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

    rxrpc: fix a race in rxrpc_exit_net() (CVE-2022-49087)

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

    Drivers: hv: vmbus: Fix potential crash on module unload (CVE-2022-49098)

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

    scsi: libfc: Fix use after free in fc_exch_abts_resp() (CVE-2022-49114)

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

    ACPI: CPPC: Avoid out of bounds access when parsing _CPC data (CVE-2022-49145)

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

    scsi: qla2xxx: Suppress a kernel complaint in qla_create_qpair() (CVE-2022-49155)

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

    ntfs: add sanity check on allocation size (CVE-2022-49166)

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

    ext4: don't BUG if someone dirty pages without asking ext4 first (CVE-2022-49171)

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

    bfq: fix use-after-free in bfq_dispatch_request (CVE-2022-49176)

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

    block, bfq: don't move oom_bfqq (CVE-2022-49179)

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

    LSM: general protection fault in legacy_parse_param (CVE-2022-49180)

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

    bpf, sockmap: Fix more uncharged while msg has more_data (CVE-2022-49204)

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

    RDMA/mlx5: Fix memory leak in error flow for subscribe event routine (CVE-2022-49206)

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

    bpf, sockmap: Fix memleak in tcp_bpf_sendmsg while sk msg is full (CVE-2022-49209)

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

    NFSD: prevent integer overflow on 32 bit systems (CVE-2022-49279)

    A flaw that boot CPU could be vulnerable for the speculative execution behavior kind of attacks in the     Linux kernel X86 CPU Power management options functionality was found in the way user resuming CPU from     suspend-to-RAM. A local user could use this flaw to potentially get unauthorized access to some memory of     the CPU similar to the speculative execution behavior kind of attacks. (CVE-2023-1637)

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 4.14.276-211.499. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2-2024-2569 advisory.

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

    ubi: Fix race condition between ctrl_cdev_ioctl and ubi_cdev_ioctl (CVE-2021-47634)

    A use-after-free flaw was found in the Linux kernel's FUSE filesystem in the way a user triggers write().
    This flaw allows a local user to gain unauthorized access to data from the FUSE filesystem, resulting in     privilege escalation. (CVE-2022-1011)

    A vulnerability was found in the pfkey_register function in net/key/af_key.c in the Linux kernel. This     flaw allows a local, unprivileged user to gain access to kernel memory, leading to a system crash or a     leak of internal kernel information. (CVE-2022-1353)

    A flaw was found in the Linux kernel implementation of proxied virtualized TPM devices. On a system where     virtualized TPM devices are configured (this is not the default) a local attacker can create a use-after-     free and create a situation where it may be possible to escalate privileges on the system. (CVE-2022-2977)

    A flaw was found in the Linux kernel. A NULL pointer dereference may occur while a slip driver is in     progress to detach in sl_tx_timeout in drivers/net/slip/slip.c. This issue could allow an attacker to     crash the system or leak internal kernel information. (CVE-2022-41858)

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

    scsi: target: tcmu: Fix possible page UAF (CVE-2022-49053)

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

    mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0) (CVE-2022-49077)

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

    mm/mempolicy: fix mpol_new leak in shared_policy_replace (CVE-2022-49080)

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

    drbd: Fix five use after free bugs in get_initial_state (CVE-2022-49085)

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

    Bluetooth: Fix use after free in hci_send_acl (CVE-2022-49111)

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

    scsi: libfc: Fix use after free in fc_exch_abts_resp() (CVE-2022-49114)

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

    ACPI: CPPC: Avoid out of bounds access when parsing _CPC data (CVE-2022-49145)

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

    scsi: qla2xxx: Suppress a kernel complaint in qla_create_qpair() (CVE-2022-49155)

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

    ntfs: add sanity check on allocation size (CVE-2022-49166)

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

    ext4: don't BUG if someone dirty pages without asking ext4 first (CVE-2022-49171)

    A flaw that boot CPU could be vulnerable for the speculative execution behavior kind of attacks in the     Linux kernel X86 CPU Power management options functionality was found in the way user resuming CPU from     suspend-to-RAM. A local user could use this flaw to potentially get unauthorized access to some memory of     the CPU similar to the speculative execution behavior kind of attacks. (CVE-2023-1637)

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 5.10.112-108.499. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2023-036 advisory.

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

    ubi: Fix race condition between ctrl_cdev_ioctl and ubi_cdev_ioctl (CVE-2021-47634)

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

    Revert Revert block, bfq: honor already-setup queue merges (CVE-2021-47646)

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

    ASoC: soc-compress: prevent the potentially use of null pointer (CVE-2021-47650)

    A denial of service (DOS) issue was found in the Linux kernel's smb2_ioctl_query_info function in     the fs/cifs/smb2ops.c Common Internet File System (CIFS) due to an incorrect return from the memdup_user     function. This flaw allows a local, privileged (CAP_SYS_ADMIN) attacker to crash the system.
    (CVE-2022-0168)

    When the KVM updates the guest's page table entry, it will first use get_user_pages_fast() to pin the     page, and when it fails (e.g. the vma->flags has VM_IO or VM_PFNMAP), it will get corresponding VMA where     the page lies in through find_vma_intersection(), calculate the physical address, and map the page to the     kernel virtual address through memremap(), and finally, write the update.The problem is that when we get     the vma through find_vma_intersection(), only VM_PFNMAP is checked, not both VM_IO and VM_PFNMAP. In the     reproducer below, after the KVM_SET_USER_MEMORY_REGION is completed, we replace the guest's memory mapping     with the kernel-user shared region of io_uring and then perform the KVM_TRANSLATE operation, which finally     triggers the page table entry update. Now, memremap() will return page_offset_base (direct mapping of all     physical memory) + vaddr (the linear address of KVM_TRANSLATE) + vm_pgoff (the offset when io_uring     performs mmap(2)), and use the return value as the base address for CMPXCHG (write 0x21 in this case).
    Since both vaddr and vm_pgoff are controllable by the user-mode process, writing may exceed the previously     mapped guest memory space and trigger exceptions such as UAF. The vulnerability shares similarities with     CVE-2021-22543. (CVE-2022-1158)

    A vulnerability was found in the pfkey_register function in net/key/af_key.c in the Linux kernel. This     flaw allows a local, unprivileged user to gain access to kernel memory, leading to a system crash or a     leak of internal kernel information. (CVE-2022-1353)

    A use-after-free flaw was found in the Linux kernel's io_uring interface subsystem in the way a user     triggers a race condition between timeout flush and removal. This flaw allows a local user to crash or     escalate their privileges on the system. (CVE-2022-29582)

    A flaw was found in the Linux kernel implementation of proxied virtualized TPM devices. On a system where     virtualized TPM devices are configured (this is not the default) a local attacker can create a use-after-     free and create a situation where it may be possible to escalate privileges on the system. (CVE-2022-2977)

    A flaw was found in the Linux kernel. A NULL pointer dereference may occur while a slip driver is in     progress to detach in sl_tx_timeout in drivers/net/slip/slip.c. This issue could allow an attacker to     crash the system or leak internal kernel information. (CVE-2022-41858)

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

    swiotlb: fix info leak with DMA_FROM_DEVICE (CVE-2022-48853)

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

    dm integrity: fix memory corruption when tag_size is less than digest size (CVE-2022-49044)

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

    scsi: target: tcmu: Fix possible page UAF (CVE-2022-49053)

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

    mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0) (CVE-2022-49077)

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

    lz4: fix LZ4_decompress_safe_partial read out of bound (CVE-2022-49078)

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

    mm/mempolicy: fix mpol_new leak in shared_policy_replace (CVE-2022-49080)

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

    qede: confirm skb is allocated before using (CVE-2022-49084)

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

    drbd: Fix five use after free bugs in get_initial_state (CVE-2022-49085)

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

    net: openvswitch: fix leak of nested actions (CVE-2022-49086)

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

    rxrpc: fix a race in rxrpc_exit_net() (CVE-2022-49087)

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

    Drivers: hv: vmbus: Fix potential crash on module unload (CVE-2022-49098)

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

    NFSv4.2: fix reference count leaks in _nfs42_proc_copy_notify() (CVE-2022-49103)

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

    scsi: libfc: Fix use after free in fc_exch_abts_resp() (CVE-2022-49114)

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

    ACPI: CPPC: Avoid out of bounds access when parsing _CPC data (CVE-2022-49145)

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

    watch_queue: Free the page array when watch_queue is dismantled (CVE-2022-49148)

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

    scsi: qla2xxx: Suppress a kernel complaint in qla_create_qpair() (CVE-2022-49155)

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

    scsi: qla2xxx: Fix scheduling while atomic (CVE-2022-49156)

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

    ext4: don't BUG if someone dirty pages without asking ext4 first (CVE-2022-49171)

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

    bfq: fix use-after-free in bfq_dispatch_request (CVE-2022-49176)

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

    block, bfq: don't move oom_bfqq (CVE-2022-49179)

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

    LSM: general protection fault in legacy_parse_param (CVE-2022-49180)

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

    bpf, sockmap: Fix more uncharged while msg has more_data (CVE-2022-49204)

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

    RDMA/mlx5: Fix memory leak in error flow for subscribe event routine (CVE-2022-49206)

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

    bpf, sockmap: Fix memleak in tcp_bpf_sendmsg while sk msg is full (CVE-2022-49209)

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

    watch_queue: Fix NULL dereference in error cleanup (CVE-2022-49257)

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

    drm/i915/gem: add missing boundary check in vm_access (CVE-2022-49261)

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

    NFSD: prevent integer overflow on 32 bit systems (CVE-2022-49279)

    A use-after-free flaw was found in the Linux kernel's core dump subsystem. This flaw could allow a local     user to crash the system. (CVE-2023-1249)

    A flaw that boot CPU could be vulnerable for the speculative execution behavior kind of attacks in the     Linux kernel X86 CPU Power management options functionality was found in the way user resuming CPU from     suspend-to-RAM. A local user could use this flaw to potentially get unauthorized access to some memory of     the CPU similar to the speculative execution behavior kind of attacks. (CVE-2023-1637)

    Improper restriction of operations within the bounds of a memory buffer in some Intel(R) i915 Graphics     drivers for linux before kernel version 6.2.10 may allow an authenticated user to potentially enable     escalation of privilege via local access. (CVE-2023-28410)

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
232643	SUSE SLES12 Security Update : kernel (SUSE-SU-2025:0834-1)	Nessus	SuSE Local Security Checks	high
224395	Linux Distros Unpatched Vulnerability : CVE-2021-47634	Nessus	Misc.	high
206247	Amazon Linux 2 : kernel (ALASKERNEL-5.4-2024-076)	Nessus	Amazon Linux Local Security Checks	high
200382	Amazon Linux 2 : kernel (ALAS-2024-2569)	Nessus	Amazon Linux Local Security Checks	high
180564	Amazon Linux 2 : kernel (ALASKERNEL-5.10-2023-036)	Nessus	Amazon Linux Local Security Checks	high

Detections

Analytics

CVE-2021-47634

high

Tenable Plugins

high

high

high

high

high