vdanen/rhvex-cve huggingface dataset:
CVE-2022-48818 (Low severity, published 2024-07-15)
CVSS score: 4.4 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)
CWE: CWE-99
Description: In the Linux kernel, the following vulnerability has been resolved:

net: dsa: mv88e6xxx: don't use devres for mdiobus

As explained in commits:
74b6d7d13307 ("net: dsa: realtek: register the MDIO bus under devres")
5135e96a3dd2 ("net: dsa: don't allocate the slave_mii_bus using devres")

mdiobus_free() will panic when called from devm_mdiobus_free() <-
devres_release_all() <- __device_release_driver(), and that mdiobus was
not previously unregistered.

The mv88e6xxx is an MDIO device, so the initial set of constraints that
I thought would cause this (I2C or SPI buses which call ->remove on
->shutdown) do not apply. But there is one more which applies here.

If the DSA master itself is on a bus that calls ->remove from ->shutdown
(like dpaa2-eth, which is on the fsl-mc bus), there is a device link
between the switch and the DSA master, and device_links_unbind_consumers()
will unbind the Marvell switch driver on shutdown.

systemd-shutdown[1]: Powering off.
mv88e6085 0x0000000008b96000:00 sw_gl0: Link is Down
fsl-mc dpbp.9: Removing from iommu group 7
fsl-mc dpbp.8: Removing from iommu group 7
------------[ cut here ]------------
kernel BUG at drivers/net/phy/mdio_bus.c:677!
Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted 5.16.5-00040-gdc05f73788e5 #15
pc : mdiobus_free+0x44/0x50
lr : devm_mdiobus_free+0x10/0x20
Call trace:
 mdiobus_free+0x44/0x50
 devm_mdiobus_free+0x10/0x20
 devres_release_all+0xa0/0x100
 __device_release_driver+0x190/0x220
 device_release_driver_internal+0xac/0xb0
 device_links_unbind_consumers+0xd4/0x100
 __device_release_driver+0x4c/0x220
 device_release_driver_internal+0xac/0xb0
 device_links_unbind_consumers+0xd4/0x100
 __device_release_driver+0x94/0x220
 device_release_driver+0x28/0x40
 bus_remove_device+0x118/0x124
 device_del+0x174/0x420
 fsl_mc_device_remove+0x24/0x40
 __fsl_mc_device_remove+0xc/0x20
 device_for_each_child+0x58/0xa0
 dprc_remove+0x90/0xb0
 fsl_mc_driver_remove+0x20/0x5c
 __device_release_driver+0x21c/0x220
 device_release_driver+0x28/0x40
 bus_remove_device+0x118/0x124
 device_del+0x174/0x420
 fsl_mc_bus_remove+0x80/0x100
 fsl_mc_bus_shutdown+0xc/0x1c
 platform_shutdown+0x20/0x30
 device_shutdown+0x154/0x330
 kernel_power_off+0x34/0x6c
 __do_sys_reboot+0x15c/0x250
 __arm64_sys_reboot+0x20/0x30
 invoke_syscall.constprop.0+0x4c/0xe0
 do_el0_svc+0x4c/0x150
 el0_svc+0x24/0xb0
 el0t_64_sync_handler+0xa8/0xb0
 el0t_64_sync+0x178/0x17c

So the same treatment must be applied to all DSA switch drivers, which
is: either use devres for both the mdiobus allocation and registration,
or don't use devres at all.

The Marvell driver already has a good structure for mdiobus removal, so
just plug in mdiobus_free and get rid of devres.
CVE-2022-0572 (Moderate severity, published 2022-02-13)
CVSS score: 7.8 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
CWE: CWE-120
Description: A heap-based buffer overflow flaw was found in vim's ex_retab() function of indent.c file. This flaw occurs when repeatedly using ":retab." This flaw allows an attacker to trick a user into opening a crafted file triggering a heap-overflow.
Statement: Red Hat Product Security has rated this issue as having Moderate security impact. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Mitigation: Untrusted vim scripts with -s [scriptin] are not recommended to run.
CVE-2022-30629 (Low severity, published 2022-06-01)
CVSS score: 3.1 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N)
CWE: CWE-331
Description: A flaw was found in the crypto/tls golang package. When session tickets are generated by crypto/tls, it is missing the ticket expiration. This issue may allow an attacker to observe the TLS handshakes to correlate successive connections during session resumption.
CVE-2022-1733 (Low severity, published 2022-05-16)
CVSS score: 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Description: A flaw was found in vim. The vulnerability occurs due to Illegal memory access and leads to a heap buffer overflow vulnerability. This flaw allows an attacker to input a specially crafted file, leading to a crash or code execution.
Mitigation: Untrusted vim scripts with -s [scriptin] are not recommended to run.
CVE-2022-37416 (Moderate severity, published 2022-08-04)
CVSS score: 6.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
Description: Ittiam libmpeg2 before 2022-07-27 uses memcpy with overlapping memory blocks in impeg2_mc_fullx_fully_8x8.
Statement: This CVE is for Android's libmpeg2, which is a completely different code base than the old standalone library by the same name. Hence, libmpeg2 shipped in Red Hat offerings is not affected.
CVE-2022-45379 (Important severity, published 2022-11-14)
CVSS score: 8 (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H)
CWE: CWE-328
Description: A flaw was found in the script-security Jenkins Plugin.  SHA-1 no longer meets the security standards for producing a cryptographically secure message digest. The affected version of the script-security Plugin stores whole-script approvals as the SHA-1 hash of the approved script.
Statement: OpenShift 3.11 is already in the ELS support model phase. The Jenkins components are out of scope of the ELS support; hence OpenShift 3.11 Jenkins component is marked in this CVE as out of support scope.
CVE-2022-30783 (Moderate severity, published 2022-05-25)
CVSS score: 6.7 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H)
CWE: CWE-252
Description: A vulnerability was found in NTFS-3G. An invalid return code in fuse_kern_mount allows libfuse-lite protocol traffic between NTFS-3G and the kernel to be intercepted.
Statement: The package libguestfs-winsupport, as shipped with Red Hat Enterprise Linux is not affected by this vulnerability as it does not use the internal libfuse, known as libfuse-lite or libfuse2.
CVE-2022-2959 (Important severity, published 2022-05-26)
CVSS score: 7 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
CWE: CWE-362
Description: A race condition was found in the Linux kernel's watch queue due to a missing lock in the pipe_resize_ring(). The race condition occurs when a thread uses ioctl(IOC_WATCH_QUEUE_SET_SIZE) to resize the pipe buffer and free the old pipe buffer, while another thread uses keyctl() to trigger a notification in the watch queue, calling post_one_notification() and accessing the freed pipe buffer. This flaw allows a local user to crash the system or escalate their privileges on the system.
Statement: Red Hat Enterprise Linux 6, 7 and 8 are not affected by this issue as they did not include support for general notification queue.
CVE-2022-42003 (Moderate severity, published 2022-10-01)
CVSS score: 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CWE: CWE-502
Description: A flaw was found in FasterXML jackson-databind. This issue could allow an attacker to benefit from resource exhaustion when the UNWRAP_SINGLE_VALUE_ARRAYS feature is enabled due to unchecked primitive value deserializers to avoid deep wrapper array nesting.
CVE-2022-22751 (Important severity, published 2022-01-10)
CVSS score: 8.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
CWE: CWE-120
Description: The Mozilla Foundation Security Advisory describes this flaw as:

Mozilla developers Calixte Denizet, Kershaw Chang, Christian Holler, Jason Kratzer, Gabriele Svelto, Tyson Smith, Simon Giesecke, and Steve Fink reported memory safety bugs present in Firefox 95 and Firefox ESR 91.4. Some of these bugs showed evidence of memory corruption, some of which could have been exploited to run arbitrary code.
Statement: Red Hat Product Security rates the severity of this flaw as determined by the Mozilla Foundation Security Advisory.
CVE-2022-50194 (Low severity, published 2025-06-17)
CVSS score: 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Description: In the Linux kernel, the following vulnerability has been resolved:

soc: qcom: aoss: Fix refcount leak in qmp_cooling_devices_register

Every iteration of for_each_available_child_of_node() decrements
the reference count of the previous node.
When breaking early from a for_each_available_child_of_node() loop,
we need to explicitly call of_node_put() on the child node.
Add missing of_node_put() to avoid refcount leak.
CVE-2022-40897 (Moderate severity, published 2022-12-21)
CVSS score: 5.9 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)
CWE: CWE-185
Description: A flaw was found in Python Setuptools due to a regular expression Denial of Service (ReDoS) present in package_index.py. This issue could allow a remote attacker to cause a denial of service via HTML in a crafted package or custom PackageIndex page.
CVE-2022-0319 (Moderate severity, published 2022-01-20)
CVSS score: 5.5 (CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N)
CWE: CWE-125
Description: A flaw was found in vim. The vulnerability occurs due to buffer shifting when exchanging windows in Visual mode and leads to a heap buffer overflow. This flaw allows an attacker to input a specially crafted file, leading to a crash or code execution.
Mitigation: Untrusted vim scripts with -s [scriptin] are not recommended to run.
CVE-2022-49531 (Low severity, published 2025-02-25)
CVSS score: 4.4 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)
CWE: CWE-667
Description: In the Linux kernel, the following vulnerability has been resolved:

loop: implement ->free_disk

Ensure that the lo_device which is stored in the gendisk private
data is valid until the gendisk is freed.  Currently the loop driver
uses a lot of effort to make sure a device is not freed when it is
still in use, but to to fix a potential deadlock this will be relaxed
a bit soon.
CVE-2022-49161 (Moderate severity, published 2025-02-25)
CVSS score: 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Description: In the Linux kernel, the following vulnerability has been resolved:

ASoC: mediatek: Fix error handling in mt8183_da7219_max98357_dev_probe

The device_node pointer is returned by of_parse_phandle()  with refcount
incremented. We should use of_node_put() on it when done.

This function only calls of_node_put() in the regular path.
And it will cause refcount leak in error paths.
Fix this by calling of_node_put() in error handling too.
CVE-2022-1508 (Moderate severity, published 2021-08-23)
CVSS score: 6.8 (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L)
CWE: CWE-125
Description: An out-of-bounds read flaw was found in the Linux kernel’s io_uring module in the way a user triggers the io_read() function with some special parameters. This flaw allows a local user to read some memory out of bounds.
CVE-2022-38472 (Important severity, published 2022-08-22)
CVSS score: 7.5 (CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)
CWE: CWE-356
Description: A flaw was found in Mozilla. The Mozilla Foundation Security Advisory describes the issue of an attacker abusing XSLT error handling to associate attacker-controlled content with another origin, which was displayed in the address bar. This issue could be used to fool the user into submitting data intended for the spoofed origin.
CVE-2022-1158 (Important severity, published 2022-04-07)
CVSS score: 7 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
CWE: CWE-416
Description: A flaw was found in KVM. When updating a guest's page table entry, vm_pgoff was improperly used as the offset to get the page's pfn. As vaddr and vm_pgoff are controllable by user-mode processes, this flaw allows unprivileged local users on the host to write outside the userspace region and potentially corrupt the kernel, resulting in a denial of service condition.
Mitigation: Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.
CVE-2022-43995 (Important severity, published 2022-11-01)
CVSS score: 7.1 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H)
CWE: CWE-125
Description: Sudo 1.8.0 through 1.9.12, with the crypt() password backend, contains a plugins/sudoers/auth/passwd.c array-out-of-bounds error that can result in a heap-based buffer over-read. This can be triggered by arbitrary local users with access to Sudo by entering a password of seven characters or fewer. The impact could vary depending on the system libraries, compiler, and processor architecture.
Statement: The sudo package as distributed with Red Hat Enterprise Linux 7, 8 and 9 is not affected by this issue as it currently doesn't ship the affected code.
CVE-2022-3165 (Moderate severity, published 2022-09-24)
CVSS score: 6.5 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
CWE: CWE-400
Description: An integer underflow issue was found in the QEMU built-in VNC server while processing ClientCutText messages in the extended format. A malicious client could use this flaw to make QEMU unresponsive by sending a specially crafted payload message, resulting in a denial of service.
Statement: Red Hat Enterprise Linux 6, 7 and RHEL Advanced Virtualization are not affected by this flaw as they did not include support for the extended clipboard pseudo-encoding (upstream commit 0bf41cab).
CVE-2022-29799 (Moderate severity, published 2022-04-26)
CVSS score: 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
CWE: CWE-22
Description: A vulnerability was found in networkd-dispatcher. This flaw exists because no functions are sanitized by the OperationalState or the AdministrativeState of networkd-dispatcher and lead to the directory traversal escaping from the “/etc/networkd-dispatcher” base directory.
Statement: This issue does not affect Red Hat Enterprise Linux 6, 7, 8, and 9 as the networkd-dispatcher package is currently not provided in any of our supported products.
CVE-2022-48770 (Low severity, published 2024-06-19)
CVSS score: 4.4 (CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)
CWE: CWE-252
Description: In the Linux kernel, the following vulnerability has been resolved:

bpf: Guard against accessing NULL pt_regs in bpf_get_task_stack()

task_pt_regs() can return NULL on powerpc for kernel threads. This is
then used in __bpf_get_stack() to check for user mode, resulting in a
kernel oops. Guard against this by checking return value of
task_pt_regs() before trying to obtain the call chain.
CVE-2022-49862 (Moderate severity, published 2025-04-30)
CVSS score: 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
CWE: CWE-908
Description: A flaw was found in the tipc module in the Linux kernel. An uninitialized value issue can be triggered due to a missing type cast when comparing the length of data with the size of an object. This issue can potentially cause system instability and result in a denial of service.
Statement: This issue has been fixed in Red Hat Enterprise Linux 8.9 and 9.2 via RHSA-2023:7077 [1] and RHSA-2023:2458 [2], respectively.

[1]. https://access.redhat.com/errata/RHSA-2023:7077

[2]. https://access.redhat.com/errata/RHSA-2023:2458
CVE-2022-48635 (Low severity, published 2024-04-27)
CVSS score: 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
CWE: CWE-835
Description: In the Linux kernel, the following vulnerability has been resolved:

fsdax: Fix infinite loop in dax_iomap_rw()

I got an infinite loop and a WARNING report when executing a tail command
in virtiofs.

  WARNING: CPU: 10 PID: 964 at fs/iomap/iter.c:34 iomap_iter+0x3a2/0x3d0
  Modules linked in:
  CPU: 10 PID: 964 Comm: tail Not tainted 5.19.0-rc7
  Call Trace:
  <TASK>
  dax_iomap_rw+0xea/0x620
  ? __this_cpu_preempt_check+0x13/0x20
  fuse_dax_read_iter+0x47/0x80
  fuse_file_read_iter+0xae/0xd0
  new_sync_read+0xfe/0x180
  ? 0xffffffff81000000
  vfs_read+0x14d/0x1a0
  ksys_read+0x6d/0xf0
  __x64_sys_read+0x1a/0x20
  do_syscall_64+0x3b/0x90
  entry_SYSCALL_64_after_hwframe+0x63/0xcd

The tail command will call read() with a count of 0. In this case,
iomap_iter() will report this WARNING, and always return 1 which casuing
the infinite loop in dax_iomap_rw().

Fixing by checking count whether is 0 in dax_iomap_rw().
CVE-2022-49927 (Low severity, published 2025-04-30)
CVSS score: 2.8 (CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L)
CWE: CWE-401
Description: In the Linux kernel, the following vulnerability has been resolved:

nfs4: Fix kmemleak when allocate slot failed

If one of the slot allocate failed, should cleanup all the other
allocated slots, otherwise, the allocated slots will leak:

  unreferenced object 0xffff8881115aa100 (size 64):
    comm ""mount.nfs"", pid 679, jiffies 4294744957 (age 115.037s)
    hex dump (first 32 bytes):
      00 cc 19 73 81 88 ff ff 00 a0 5a 11 81 88 ff ff  ...s......Z.....
      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    backtrace:
      [<000000007a4c434a>] nfs4_find_or_create_slot+0x8e/0x130
      [<000000005472a39c>] nfs4_realloc_slot_table+0x23f/0x270
      [<00000000cd8ca0eb>] nfs40_init_client+0x4a/0x90
      [<00000000128486db>] nfs4_init_client+0xce/0x270
      [<000000008d2cacad>] nfs4_set_client+0x1a2/0x2b0
      [<000000000e593b52>] nfs4_create_server+0x300/0x5f0
      [<00000000e4425dd2>] nfs4_try_get_tree+0x65/0x110
      [<00000000d3a6176f>] vfs_get_tree+0x41/0xf0
      [<0000000016b5ad4c>] path_mount+0x9b3/0xdd0
      [<00000000494cae71>] __x64_sys_mount+0x190/0x1d0
      [<000000005d56bdec>] do_syscall_64+0x35/0x80
      [<00000000687c9ae4>] entry_SYSCALL_64_after_hwframe+0x46/0xb0
Statement: Memory Leak in nfs4_setup_slot_table() on Allocation Failure. In NFSv4, if slot allocation fails during the setup of a slot table, previously allocated slots are not freed, leading to a kernel memory leak. The issue occurs during NFS mount attempts and may result in unreferenced kernel memory accumulation (visible via kmemleak). Only local user with ability to invoke mount.nfs (e.g., CAP_SYS_ADMIN) can trigger this one.
Mitigation: Mitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
CVE-2022-21716 (Important severity, published 2022-03-02)
CVSS score: 7.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
CWE: CWE-770
Description: An uncontrolled resource consumption flaw was found in python-twisted in the dataReceived() function. This flaw allows an unauthenticated, remote attacker to send a simple command to use all available memory and crash the server.
CVE-2022-33681 (Moderate severity, published 2022-09-21)
CVSS score: 5.9 (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N)
CWE: CWE-295
Description: A flaw was found in the Apache Pulsar Java Client. This flaw allows an attacker to use a Man-in-the-Middle (MITM) attack, manipulating network traffic and gaining the client's authentication data.
CVE-2022-49474 (Moderate severity, published 2025-02-25)
CVSS score: 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Description: A flaw was discovered in the Linux kernel’s Bluetooth subsystem, SCO sockets. When calling sco_sock_connect() and connecting the same socket twice in quick succession, two sco_conn objects may be created, but only one gets associated with the socket. If the socket is closed before the SCO connection is fully established, the timer linked to the dangling sco_conn is not canceled. This results in a use-after-free issue in sco_sock_timeout(), where the kernel attempts to access the freed socket. A local, unprivileged user may exploit this flaw to trigger kernel memory corruption, resulting in system instability or a denial of service.
Statement: Red Hat has assigned this vulnerability a Moderate severity rating with a CVSS score of 5.5. This assessment is based on the following key factors:

* It is impossible to create sco_conn objects without physical access to both the server and client systems.
* The dangling timer can cause a resource consumption attack, but there is no risk of any data leaks.
* There is no loss of integrity, as even in case of successful exploitation, there is no data exchanged between the client and the server.
CVE-2022-49024 (Moderate severity, published 2024-10-20)
CVSS score: 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
CWE: CWE-401
Description: In the Linux kernel, the following vulnerability has been resolved:

can: m_can: pci: add missing m_can_class_free_dev() in probe/remove methods

In m_can_pci_remove() and error handling path of m_can_pci_probe(),
m_can_class_free_dev() should be called to free resource allocated by
m_can_class_allocate_dev(), otherwise there will be memleak.
CVE-2022-47939 (Critical severity, published 2022-12-21)
CVSS score: 10 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H)
CWE: CWE-416
Description: An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. fs/ksmbd/smb2pdu.c has a use-after-free and OOPS for SMB2_TREE_DISCONNECT.
Statement: There was no shipped kernel version that was seen affected by this problem. These files are not built in our source code. See https://access.redhat.com/solutions/6991749 for more information.
CVE-2022-50205 (Moderate severity, published 2025-06-17)
CVSS score: 7 (CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H)
Description: In the Linux kernel, the following vulnerability has been resolved:

ext2: Add more validity checks for inode counts

Add checks verifying number of inodes stored in the superblock matches
the number computed from number of inodes per group. Also verify we have
at least one block worth of inodes per group. This prevents crashes on
corrupted filesystems.
CVE-2022-32213 (Moderate severity, published 2022-07-07)
CVSS score: 6.5 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N)
CWE: CWE-444
Description: A vulnerability was found in NodeJS due to improper validation of HTTP requests. The llhttp parser in the http module does not correctly parse and validate Transfer-Encoding headers. This issue can lead to HTTP Request Smuggling (HRS), causing web cache poisoning, and conducting XSS attacks.
CVE-2022-21595 (Moderate severity, published 2022-10-17)
CVSS score: 4.4 (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H)
Description: Vulnerability in the MySQL Server product of Oracle MySQL (component: C API). Supported versions that are affected are 5.7.36 and prior and 8.0.27 and prior. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 4.4 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H).
CVE-2022-50086 (Moderate severity, published 2025-06-17)
CVSS score: 5.5 (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Description: In the Linux kernel, the following vulnerability has been resolved:

block: don't allow the same type rq_qos add more than once

In our test of iocost, we encountered some list add/del corruptions of
inner_walk list in ioc_timer_fn.

The reason can be described as follows:

cpu 0					cpu 1
ioc_qos_write				ioc_qos_write

ioc = q_to_ioc(queue);
if (!ioc) {
        ioc = kzalloc();
					ioc = q_to_ioc(queue);
					if (!ioc) {
						ioc = kzalloc();
						...
						rq_qos_add(q, rqos);
					}
        ...
        rq_qos_add(q, rqos);
        ...
}

When the io.cost.qos file is written by two cpus concurrently, rq_qos may
be added to one disk twice. In that case, there will be two iocs enabled
and running on one disk. They own different iocgs on their active list. In
the ioc_timer_fn function, because of the iocgs from two iocs have the
same root iocg, the root iocg's walk_list may be overwritten by each other
and this leads to list add/del corruptions in building or destroying the
inner_walk list.

And so far, the blk-rq-qos framework works in case that one instance for
one type rq_qos per queue by default. This patch make this explicit and
also fix the crash above.