RHSA-2024:4554 - Security Advisory

Topic

An update for kernel-rt is now available for Red Hat Enterprise Linux 9.2 Extended Update Support.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• kernel: tls: race between tx work scheduling and socket close (CVE-2024-26585)
• kernel: vt: fix memory overlapping when deleting chars in the buffer (CVE-2022-48627)
• kernel: can: j1939: prevent deadlock by changing j1939_socks_lock to rwlock (CVE-2023-52638)
• kernel: mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again (CVE-2024-26720)
• kernel: Bluetooth: Avoid potential use-after-free in hci_error_reset (CVE-2024-26801)
• kernel: mm/vmscan: fix a bug calling wakeup_kswapd() with a wrong zone index (CVE-2024-26783)
• kernel: net/ipv6: avoid possible UAF in ip6_route_mpath_notify() (CVE-2024-26852)
• kernel: TIPC message reassembly use-after-free remote code execution vulnerability (CVE-2024-36886)
• kernel: icmp: prevent possible NULL dereferences from icmp_build_probe() (CVE-2024-35857)
• kernel: netfilter: nf_tables: Fix potential data-race in __nft_flowtable_type_get() (CVE-2024-35898)
• kernel: ipv6: fix race condition between ipv6_get_ifaddr and ipv6_del_addr (CVE-2024-35969)
• kernel: netfilter: nf_tables: honor table dormant flag from netdev release event path (CVE-2024-36005)
• kernel: ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port() (CVE-2021-47548)
• kernel: tty: n_gsm: fix possible out-of-bounds in gsm0_receive() (CVE-2024-36016)
• kernel: net: hns3: fix use-after-free bug in hclgevf_send_mbx_msg (CVE-2021-47596)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

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.

Affected Products

• Red Hat Enterprise Linux for Real Time for x86_64 - 4 years of updates 9.2 x86_64
• Red Hat Enterprise Linux for Real Time for NFV for x86_64 - 4 years of updates 9.2 x86_64

Fixes

• BZ - 2265517 - CVE-2024-26585 kernel: tls: race between tx work scheduling and socket close
• BZ - 2267509 - CVE-2022-48627 kernel: vt: fix memory overlapping when deleting chars in the buffer
• BZ - 2273082 - CVE-2023-52638 kernel: can: j1939: prevent deadlock by changing j1939_socks_lock to rwlock
• BZ - 2273141 - CVE-2024-26720 kernel: mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again
• BZ - 2273429 - CVE-2024-26801 kernel: Bluetooth: Avoid potential use-after-free in hci_error_reset
• BZ - 2273466 - CVE-2024-26783 kernel: mm/vmscan: fix a bug calling wakeup_kswapd() with a wrong zone index
• BZ - 2275761 - CVE-2024-26852 kernel: net/ipv6: avoid possible UAF in ip6_route_mpath_notify()
• BZ - 2277238 - CVE-2024-36886 kernel: TIPC message reassembly use-after-free remote code execution vulnerability
• BZ - 2281247 - CVE-2024-35857 kernel: icmp: prevent possible NULL dereferences from icmp_build_probe()
• BZ - 2281669 - CVE-2024-35898 kernel: netfilter: nf_tables: Fix potential data-race in __nft_flowtable_type_get()
• BZ - 2281900 - CVE-2024-35969 kernel: ipv6: fix race condition between ipv6_get_ifaddr and ipv6_del_addr
• BZ - 2281949 - CVE-2024-36005 kernel: netfilter: nf_tables: honor table dormant flag from netdev release event path
• BZ - 2283401 - CVE-2021-47548 kernel: ethernet: hisilicon: hns: hns_dsaf_misc: fix a possible array overflow in hns_dsaf_ge_srst_by_port()
• BZ - 2283894 - CVE-2024-36016 kernel: tty: n_gsm: fix possible out-of-bounds in gsm0_receive()
• BZ - 2293230 - CVE-2021-47596 kernel: net: hns3: fix use-after-free bug in hclgevf_send_mbx_msg

CVEs

• CVE-2021-47548
• CVE-2021-47596
• CVE-2022-48627
• CVE-2023-52638
• CVE-2024-26583
• CVE-2024-26585
• CVE-2024-26720
• CVE-2024-26783
• CVE-2024-26801
• CVE-2024-26852
• CVE-2024-35857
• CVE-2024-35898
• CVE-2024-35969
• CVE-2024-36005
• CVE-2024-36016
• CVE-2024-36886

References

• https://access.redhat.com/security/updates/classification/#important