huzaifas-sidhpurwala/RedHat-security-VeX huggingface dataset:
infinite recursion in the type definition parser
CVE: CVE-2022-37315
Component: graphql-go
Release date: 2022-08-02T00:00:00+00:00

graphql-go (aka GraphQL for Go) through 0.8.0 has infinite recursion in the type definition parser.

Statement: Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.

Remediation:
Missing Authentication for Critical Function
CVE: CVE-2022-21691
Component: onionshare
CVSS v3: 4.5/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Release date: 2022-01-19T00:00:00+00:00

OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. In affected versions chat participants can spoof their channel leave message, tricking others into assuming they left the chatroom.

Statement: Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.

Remediation:
integer overflow vulnerability
CVE: CVE-2022-4398
Component: dev-util/radare2
Release date: 2022-12-10T00:00:00+00:00

Integer Overflow or Wraparound in GitHub repository radareorg/radare2 prior to 5.8.0.

Statement: Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.

Remediation:
load of misaligned address at MagickCore/property.c
CVE: CVE-2022-32547
Component: ImageMagick
CWE: CWE-681
Severity: Moderate
CVSS v3: 5.4/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Release date: 2022-04-09T00:00:00+00:00

A flaw was found in ImageMagick, where there is a load of a misaligned address for type 'double,' which requires 8-byte alignment, and for type 'float,' which requires 4-byte alignment at MagickCore/property.c. Whenever ImageMagick processes crafted or untrusted input, this causes a negative impact on application availability or other problems related to undefined behavior.


Remediation:
Recursive locking violation in usb-storage that can cause the kernel to deadlock
CVE: CVE-2022-4662
Component: kernel
CWE: CWE-455
Severity: Low
CVSS v3: 4.3/AV:P/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Release date: 2022-09-13T09:00:00+00:00

An incorrect access control flaw was found in the Linux kernel USB core subsystem. When attaching a malicious usb device, the recursive locking violation in usb-storage can cause the kernel to deadlock. This issue could allow a local user to crash the system.


Remediation:
For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.
For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.
Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258
Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258
heap buffer overflow in crafted TGA file
CVE: CVE-2022-30595
Component: python-pillow
CWE: CWE-119
Severity: Low
CVSS v3: 6.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Release date: 2022-05-17T00:00:00+00:00

A heap buffer overflow vulnerability was found in python-pillow. This security vulnerability occurs when reading a TGA file with RLE packets that cross scan lines, where pillow reads the information past the end of the first line without deducting that from the length of the remaining file data.


Remediation:
mrp: introduce active flags to prevent UAF when applicant uninit
CVE: CVE-2022-50697
Component: kernel
Severity: Low
CVSS v3: 5.6/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Release date: 2022-01-01T00:00:00+00:00

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

mrp: introduce active flags to prevent UAF when applicant uninit

The caller of del_timer_sync must prevent restarting of the timer, If
we have no this synchronization, there is a small probability that the
cancellation will not be successful.

And syzbot report the fellowing crash:
==================================================================
BUG: KASAN: use-after-free in hlist_add_head include/linux/list.h:929 [inline]
BUG: KASAN: use-after-free in enqueue_timer+0x18/0xa4 kernel/time/timer.c:605
Write at addr f9ff000024df6058 by task syz-fuzzer/2256
Pointer tag: [f9], memory tag: [fe]

CPU: 1 PID: 2256 Comm: syz-fuzzer Not tainted 6.1.0-rc5-syzkaller-00008-
ge01d50cbd6ee #0
Hardware name: linux,dummy-virt (DT)
Call trace:
 dump_backtrace.part.0+0xe0/0xf0 arch/arm64/kernel/stacktrace.c:156
 dump_backtrace arch/arm64/kernel/stacktrace.c:162 [inline]
 show_stack+0x18/0x40 arch/arm64/kernel/stacktrace.c:163
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x68/0x84 lib/dump_stack.c:106
 print_address_description mm/kasan/report.c:284 [inline]
 print_report+0x1a8/0x4a0 mm/kasan/report.c:395
 kasan_report+0x94/0xb4 mm/kasan/report.c:495
 __do_kernel_fault+0x164/0x1e0 arch/arm64/mm/fault.c:320
 do_bad_area arch/arm64/mm/fault.c:473 [inline]
 do_tag_check_fault+0x78/0x8c arch/arm64/mm/fault.c:749
 do_mem_abort+0x44/0x94 arch/arm64/mm/fault.c:825
 el1_abort+0x40/0x60 arch/arm64/kernel/entry-common.c:367
 el1h_64_sync_handler+0xd8/0xe4 arch/arm64/kernel/entry-common.c:427
 el1h_64_sync+0x64/0x68 arch/arm64/kernel/entry.S:576
 hlist_add_head include/linux/list.h:929 [inline]
 enqueue_timer+0x18/0xa4 kernel/time/timer.c:605
 mod_timer+0x14/0x20 kernel/time/timer.c:1161
 mrp_periodic_timer_arm net/802/mrp.c:614 [inline]
 mrp_periodic_timer+0xa0/0xc0 net/802/mrp.c:627
 call_timer_fn.constprop.0+0x24/0x80 kernel/time/timer.c:1474
 expire_timers+0x98/0xc4 kernel/time/timer.c:1519

To fix it, we can introduce a new active flags to make sure the timer will
not restart.


Remediation:
Heap buffer overflow in DevTools
CVE: CVE-2022-1876
Component: chromium-browser
CVSS v3: 8.7/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Release date: 2022-05-24T00:00:00+00:00

Heap buffer overflow in DevTools in Google Chrome prior to 102.0.5005.61 allowed an attacker who convinced a user to install a malicious extension to potentially exploit heap corruption via a crafted HTML page.

Statement: Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.

Remediation:
Capability gradereport/user:view not always respected when navigating to a user's course grade report
CVE: CVE-2022-0334
Component: moodle
CVSS v3: 6.7/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Release date: 2022-01-24T04:00:00+00:00

A flaw was found in Moodle in versions 3.11 to 3.11.4, 3.10 to 3.10.8, 3.9 to 3.9.11 and earlier unsupported versions. Insufficient capability checks could lead to users accessing their grade report for courses where they did not have the required gradereport/user:view capability.

Statement: Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.

Remediation:
NULL Pointer Dereference in lxml
CVE: CVE-2022-2309
Component: lxml
CWE: CWE-476
Severity: Moderate
CVSS v3: 7.5/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Release date: 2022-07-05T00:00:00+00:00

A NULL Pointer dereference vulnerability found in lxml, caused by the iterwalk function (also used by the canonicalize function). This flaw can lead to a crash when the incorrect parser input occurs together with usages.


Remediation:
f2fs: fix to avoid use f2fs_bug_on() in f2fs_new_node_page()
CVE: CVE-2022-50013
Component: kernel
Severity: None
Release date: 2022-01-01T00:00:00+00:00

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

f2fs: fix to avoid use f2fs_bug_on() in f2fs_new_node_page()

As Dipanjan Das <mail.dipanjan.das@gmail.com> reported, syzkaller
found a f2fs bug as below:

RIP: 0010:f2fs_new_node_page+0x19ac/0x1fc0 fs/f2fs/node.c:1295
Call Trace:
 write_all_xattrs fs/f2fs/xattr.c:487 [inline]
 __f2fs_setxattr+0xe76/0x2e10 fs/f2fs/xattr.c:743
 f2fs_setxattr+0x233/0xab0 fs/f2fs/xattr.c:790
 f2fs_xattr_generic_set+0x133/0x170 fs/f2fs/xattr.c:86
 __vfs_setxattr+0x115/0x180 fs/xattr.c:182
 __vfs_setxattr_noperm+0x125/0x5f0 fs/xattr.c:216
 __vfs_setxattr_locked+0x1cf/0x260 fs/xattr.c:277
 vfs_setxattr+0x13f/0x330 fs/xattr.c:303
 setxattr+0x146/0x160 fs/xattr.c:611
 path_setxattr+0x1a7/0x1d0 fs/xattr.c:630
 __do_sys_lsetxattr fs/xattr.c:653 [inline]
 __se_sys_lsetxattr fs/xattr.c:649 [inline]
 __x64_sys_lsetxattr+0xbd/0x150 fs/xattr.c:649
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0

NAT entry and nat bitmap can be inconsistent, e.g. one nid is free
in nat bitmap, and blkaddr in its NAT entry is not NULL_ADDR, it
may trigger BUG_ON() in f2fs_new_node_page(), fix it.


Remediation:
drm/amd/display: Fix a NULL pointer dereference in amdgpu_dm_connector_add_common_modes()
CVE: CVE-2022-49232
Component: kernel
CWE: CWE-476
Severity: Moderate
CVSS v3: 5.6/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Release date: 2022-01-01T00:00:00+00:00

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

drm/amd/display: Fix a NULL pointer dereference in amdgpu_dm_connector_add_common_modes()

In amdgpu_dm_connector_add_common_modes(), amdgpu_dm_create_common_mode()
is assigned to mode and is passed to drm_mode_probed_add() directly after
that. drm_mode_probed_add() passes &mode->head to list_add_tail(), and
there is a dereference of it in list_add_tail() without recoveries, which
could lead to NULL pointer dereference on failure of
amdgpu_dm_create_common_mode().

Fix this by adding a NULL check of mode.

This bug was found by a static analyzer.

Builds with 'make allyesconfig' show no new warnings,
and our static analyzer no longer warns about this code.


Remediation:
usb: dwc3: gadget: Replace list_for_each_entry_safe() if using giveback
CVE: CVE-2022-49398
Component: kernel
Severity: Moderate
CVSS v3: 5.6/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Release date: 2022-01-01T00:00:00+00:00

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

usb: dwc3: gadget: Replace list_for_each_entry_safe() if using giveback

The list_for_each_entry_safe() macro saves the current item (n) and
the item after (n+1), so that n can be safely removed without
corrupting the list.  However, when traversing the list and removing
items using gadget giveback, the DWC3 lock is briefly released,
allowing other routines to execute.  There is a situation where, while
items are being removed from the cancelled_list using
dwc3_gadget_ep_cleanup_cancelled_requests(), the pullup disable
routine is running in parallel (due to UDC unbind).  As the cleanup
routine removes n, and the pullup disable removes n+1, once the
cleanup retakes the DWC3 lock, it references a request who was already
removed/handled.  With list debug enabled, this leads to a panic.
Ensure all instances of the macro are replaced where gadget giveback
is used.

Example call stack:

Thread#1:
__dwc3_gadget_ep_set_halt() - CLEAR HALT
  -> dwc3_gadget_ep_cleanup_cancelled_requests()
    ->list_for_each_entry_safe()
    ->dwc3_gadget_giveback(n)
      ->dwc3_gadget_del_and_unmap_request()- n deleted[cancelled_list]
      ->spin_unlock
      ->Thread#2 executes
      ...
    ->dwc3_gadget_giveback(n+1)
      ->Already removed!

Thread#2:
dwc3_gadget_pullup()
  ->waiting for dwc3 spin_lock
  ...
  ->Thread#1 released lock
  ->dwc3_stop_active_transfers()
    ->dwc3_remove_requests()
      ->fetches n+1 item from cancelled_list (n removed by Thread#1)
      ->dwc3_gadget_giveback()
        ->dwc3_gadget_del_and_unmap_request()- n+1 deleted[cancelled_list]
        ->spin_unlock


Remediation:
For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.
For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.
CRLF injection in node-undici
CVE: CVE-2022-31150
Component: nodejs16
CWE: CWE-93
Severity: Moderate
CVSS v3: 6.4/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Release date: 2022-07-19T00:00:00+00:00

A flaw was found in the undici package. When requesting an input on an unsanitized request path, method, or headers it is possible to inject Carriage Return/Line Feed (CRLF) sequences into these requests.


Remediation:
drm/rockchip: lvds: fix PM usage counter unbalance in poweron
CVE: CVE-2022-50443
Component: kernel
Severity: None
Release date: 2022-01-01T00:00:00+00:00

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

drm/rockchip: lvds: fix PM usage counter unbalance in poweron

pm_runtime_get_sync will increment pm usage counter even it failed.
Forgetting to putting operation will result in reference leak here.
We fix it by replacing it with the newest pm_runtime_resume_and_get
to keep usage counter balanced.


Remediation:
ipv6: fix lockdep splat in in6_dump_addrs()
CVE: CVE-2022-49662
Component: kernel
CWE: CWE-99
Severity: Moderate
CVSS v3: 3.4/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Release date: 2022-01-01T00:00:00+00:00

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

ipv6: fix lockdep splat in in6_dump_addrs()

As reported by syzbot, we should not use rcu_dereference()
when rcu_read_lock() is not held.

WARNING: suspicious RCU usage
5.19.0-rc2-syzkaller #0 Not tainted

net/ipv6/addrconf.c:5175 suspicious rcu_dereference_check() usage!

other info that might help us debug this:

rcu_scheduler_active = 2, debug_locks = 1
1 lock held by syz-executor326/3617:
 #0: ffffffff8d5848e8 (rtnl_mutex){+.+.}-{3:3}, at: netlink_dump+0xae/0xc20 net/netlink/af_netlink.c:2223

stack backtrace:
CPU: 0 PID: 3617 Comm: syz-executor326 Not tainted 5.19.0-rc2-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
 in6_dump_addrs+0x12d1/0x1790 net/ipv6/addrconf.c:5175
 inet6_dump_addr+0x9c1/0xb50 net/ipv6/addrconf.c:5300
 netlink_dump+0x541/0xc20 net/netlink/af_netlink.c:2275
 __netlink_dump_start+0x647/0x900 net/netlink/af_netlink.c:2380
 netlink_dump_start include/linux/netlink.h:245 [inline]
 rtnetlink_rcv_msg+0x73e/0xc90 net/core/rtnetlink.c:6046
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2501
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:734
 ____sys_sendmsg+0x6eb/0x810 net/socket.c:2492
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2546
 __sys_sendmsg net/socket.c:2575 [inline]
 __do_sys_sendmsg net/socket.c:2584 [inline]
 __se_sys_sendmsg net/socket.c:2582 [inline]
 __x64_sys_sendmsg+0x132/0x220 net/socket.c:2582
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x46/0xb0


Remediation:
ntfs3: out-of-bounds write in mi_enum_attr()
CVE: CVE-2022-48423
Component: kernel
CWE: CWE-787
Severity: Moderate
CVSS v3: 7.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Release date: 2022-01-01T00:00:00+00:00

In the Linux kernel before 6.1.3, fs/ntfs3/record.c does not validate resident attribute names. An out-of-bounds write may occur.

Statement: Red Hat Enterprise Linux is not affected by this flaw as it does not include support for the NTFS3 file system driver.

Remediation:
Out of Bound Write in xrdp_mm_trans_process_drdynvc_channel_open()
CVE: CVE-2022-23478
Component: xrdp
CVSS v3: 9.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Release date: 2022-12-09T00:00:00+00:00

xrdp is an open source project which provides a graphical login to remote machines using Microsoft Remote Desktop Protocol (RDP).
xrdp < v0.9.21 contain a Out of Bound Write in xrdp_mm_trans_process_drdynvc_channel_open() function. There are no known workarounds for this issue. Users are advised to upgrade.

Statement: Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.

Remediation:
Xstream to serialise XML data was vulnerable to Denial of Service attacks
CVE: CVE-2022-40156
Component: xstream
CWE: CWE-787
Severity: Moderate
CVSS v3: 7.5/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Release date: 2022-09-16T00:00:00+00:00

A flaw was found in the XStream package. This flaw allows an attacker to cause a denial of service (DoS) in its target via XML serialization.


Remediation:
Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258
Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258
Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258
constant-time-defeating optimisations issue in the compare_digest function in Lib/hmac.p
CVE: CVE-2022-48566
Component: python
CWE: CWE-362
Severity: Moderate
CVSS v3: 5.8/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Release date: 2022-01-01T00:00:00+00:00

A constant-time-defeating optimization issue was found in python. This issue occurs when sending a specially crafted request, which could allow an attacker to obtain sensitive information.

Statement: This flaw is classified as Moderate as in contrast to an Important rating, the exploitation of this vulnerability is difficult to achieve and the outcome of the impact is breach of confidentiality.

Versions of `python36:3.6/python36` as shipped with Red Hat Enterprise Linux 8 are marked as 'Not affected' as they just provide "symlinks" to the main `python3` component, which provides the interpreter of the Python programming language.

Versions of  `python39:3.9/python39` and `python2` in various modules as shipped with Red Hat Enterprise Linux 8, `python3.11/python3.9` as shipped with Red Hat Enterprise Linux 9 and `python 3.8.14` as shipped with Red Hat Software Collections are marked as 'Not affected' as they are higher than the vulnerable version, thereby containing the fixed code.

Remediation:
As per upstream, either make the accumulator variable result a volatile unsigned char instead of unsigned char or use instead use CRYPTO_memcmp from OpenSSL/BoringSSL when SSL is available as SSL libraries are more secure when it comes to timing based vulnerabilities.

https://github.com/python/cpython/issues/84968
bpf: prevent leak of lsm program after failed attach
CVE: CVE-2022-50855
Component: kernel
CWE: CWE-911
Severity: Low
CVSS v3: 3.4/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Release date: 2022-01-01T00:00:00+00:00

A reference count leak was found in the BPF subsystem. When attaching a BPF LSM program to a cgroup fails validation, the program's reference count is not decremented, causing the BPF program to remain loaded indefinitely.

Statement: This requires CAP_BPF or CAP_SYS_ADMIN to trigger, as loading BPF programs is a privileged operation. The leak accumulates memory over repeated failed attach attempts but does not provide privilege escalation.

Remediation:
For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.
Out of bounds write in V8
CVE: CVE-2022-3373
Component: chromium-browser
CVSS v3: 8.7/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Release date: 2022-09-30T00:00:00+00:00

Out of bounds write in V8 in Google Chrome prior to 106.0.5249.91 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: High)

Statement: Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.

Remediation:
Type Confusion in V8
CVE: CVE-2022-3723
Component: chromium-browser
CVSS v3: 8.7/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Release date: 2022-10-27T00:00:00+00:00

Type confusion in V8 in Google Chrome prior to 107.0.5304.87 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Statement: Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.

Remediation:
Integer Overflow in blender thumbnail extractor
CVE: CVE-2022-2831
Component: blender
CVSS v3: 7.2/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Release date: 2022-08-16T00:00:00+00:00

A flaw was found in Blender 3.3.0. An interger overflow in source/blender/blendthumb/src/blendthumb_extract.cc may lead to program crash or memory corruption.

Statement: Red Hat Product Security has determined that this vulnerability does not affect any currently supported Red Hat product. This assessment may evolve based on further analysis and discovery. For more information about this vulnerability and the products it affects, please see the linked references.

Remediation:
blk-mq: don't touch ->tagset in blk_mq_get_sq_hctx
CVE: CVE-2022-49377
Component: kernel
Severity: Moderate
CVSS v3: 7.9/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Release date: 2022-01-01T00:00:00+00:00

A use-after-free vulnerability was found in the blk_mq_get_sq_hctx function in the Linux kernel's block multiqueue (blk-mq) subsystem. This issue occurs when the function accesses the tagset pointer to determine the current default hardware context through mapping. If this access occurs after the tagset has been freed, typically after the queue cleanup process, it can lead to memory corruption. Such corruption may result in system crashes, information leaks, or privilege escalation, depending on how the freed memory is subsequently used.


Remediation:
For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.
For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

The system must be rebooted for this update to take effect.