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ALSA-2024:4349 — Moderate: kernel security and bug fix update

Affected: AlmaLinux:9: bpftool, AlmaLinux:9: kernel, AlmaLinux:9: kernel-64k, AlmaLinux:9: kernel-64k-core, AlmaLinux:9: kernel-64k-debug, AlmaLinux:9: kernel-64k-debug-core, AlmaLinux:9: kernel-64k-debug-devel, AlmaLinux:9: kernel-64k-debug-devel-matched, AlmaLinux:9: kernel-64k-debug-modules, AlmaLinux:9: kernel-64k-debug-modules-core and 52 more

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

* kernel: net/mlx5e: Fix operation precedence bug in port timestamping napi_poll context (CVE-2023-52626) * kernel: Bluetooth: Avoid potential use-after-free in hci_error_reset (CVE-2024-26801) * kernel: crypto: qat - resolve race condition during AER recovery (CVE-2024-26974) * kernel: xen-netfront: Add missing skb_mark_for_recycle (CVE-2024-27393) * kernel: net/mlx5e: fix a potential double-free in fs_any_create_groups (CVE-2023-52667) * kernel: smb: client: fix UAF in smb2_reconnect_server() (CVE-2024-35870) * kernel: net/mlx5: Properly link new fs rules into the tree (CVE-2024-35960) * kernel: net: hns3: do not allow call hns3_nic_net_open repeatedly (CVE-2021-47400)

Bug Fix(es):

* cifs - kernel panic with cifs_put_smb_ses (JIRA:AlmaLinux-28943) * BUG: unable to handle page fault for address: ff16bf752f593ff8 [almalinux-9.4.z] (JIRA:AlmaLinux-35672) * [HPE 9.4 Bug] Request merge of AMD address translation library patch series [almalinux-9.4.z] (JIRA:AlmaLinux-36220) * [AlmaLinux9] kernel BUG at lib/list_debug.c:51! [almalinux-9.4.z] (JIRA:AlmaLinux-36687) * ice: DPLL-related fixes [almalinux-9.4.z] (JIRA:AlmaLinux-36716) * CNB95: net/sched: update TC core to upstream v6.8 [almalinux-9.4.z] (JIRA:AlmaLinux-37641) * IPv6: SR: backport fixes from upstream [almalinux-9.4.z] (JIRA:AlmaLinux-37669) * [RFE] Backport tmpfs noswap moun…

bdu:2024-04218

BELL-CVE-2024-35870

Affected: Alpaquita:23: linux-lts, Alpaquita:25: linux-lts, Alpaquita:stream: linux-lts

certfr-2024-avi-0496 — De multiples vulnérabilités ont été découvertes dans le noyau Linux de SUSE. Certaines d'entre elles permettent à un at…

certfr-2024-avi-0496

EUVD-2026-345686

fkie_cve-2024-35870

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

smb: client: fix UAF in smb2_reconnect_server()

The UAF bug is due to smb2_reconnect_server() accessing a session that is already being teared down by another thread that is executing __cifs_put_smb_ses(). This can happen when (a) the client has connection to the server but no session or (b) another thread ends up setting @ses->ses_status again to something different than SES_EXITING.

To fix this, we need to make sure to unconditionally set @ses->ses_status to SES_EXITING and prevent any other threads from setting a new status while we're still tearing it down.

The following can be reproduced by adding some delay to right after the ipc is freed in __cifs_put_smb_ses() - which will give smb2_reconnect_server() worker a chance to run and then accessing @ses->ipc:

kinit ... mount.cifs //srv/share /mnt/1 -o sec=krb5,nohandlecache,echo_interval=10 [disconnect srv] ls /mnt/1 &>/dev/null sleep 30 kdestroy [reconnect srv] sleep 10 umount /mnt/1 ... CIFS: VFS: Verify user has a krb5 ticket and keyutils is installed CIFS: VFS: \\srv Send error in SessSetup = -126 CIFS: VFS: Verify user has a krb5 ticket and keyutils is installed CIFS: VFS: \\srv Send error in SessSetup = -126 general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6b6b: 0000 [#1] PREEMPT SMP NOPTI CPU: 3 PID: 50 Comm: kworker/3:1 Not tainted 6.9.0-rc2 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-1.fc39 04…

GHSA-h2wx-vrp7-wvmw

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

smb: client: fix UAF in smb2_reconnect_server()

To fix this, we need to make sure to unconditionally set @ses->ses_status to SES_EXITING and prevent any other threads from setting a new status while we're still tearing it down.

msrc_CVE-2024-35870 — smb: client: fix UAF in smb2_reconnect_server()

msrc_CVE-2024-35870

OESA-2024-1737 — kernel security update

Affected: openEuler:22.03-LTS-SP1: kernel

The Linux Kernel, the operating system core itself. Security Fix(es): In the Linux kernel, the following vulnerability has been resolved: afs: Fix corruption in reads at fpos 2G-4G from an OpenAFS server AFS-3 has two data fetch RPC variants, FS.FetchData and FS.FetchData64, and Linux's afs client switches between them when talking to a non-YFS server if the read size, the file position or the sum of the two have the upper 32 bits set of the 64-bit value. This is a problem, however, since the file position and length fields of FS.FetchData are *signed* 32-bit values. Fix this by capturing the capability bits obtained from the fileserver when it's sent an FS.GetCapabilities RPC, rather than just discarding them, and then picking out the VICED_CAPABILITY_64BITFILES flag. This can then be used to decide whether to use FS.FetchData or FS.FetchData64 - and also FS.StoreData or FS.StoreData64 - rather than using upper_32_bits() to switch on the parameter values. This capabilities flag could also be used to limit the maximum size of the file, but all servers must be checked for that. Note that the issue does not exist with FS.StoreData - that uses *unsigned* 32-bit values. It's also not a problem with Auristor servers as its YFS.FetchData64 op uses unsigned 64-bit values. This can be tested by cloning a git repo through an OpenAFS client to an OpenAFS server and then doing "git status" on it from a Linux afs client[1]. Provided…

RHSA-2024:4106 — Red Hat Security Advisory: kernel-rt security update

kernel: net: hns3: do not allow call hns3_nic_net_open repeatedly kernel: xen-netfront: Add missing skb_mark_for_recycle kernel: netfilter: nf_tables: use timestamp to check for set element timeout kernel: netfilter: nft_flow_offload: reset dst in route object after setting up flow kernel: smb: client: fix UAF in smb2_reconnect_server() kernel: net: ena: Fix incorrect descriptor free behavior kernel: net/mlx5: Properly link new fs rules into the tree kernel: octeontx2-af: avoid off-by-one read from userspace

RHSA-2024:4349 — Red Hat Security Advisory: kernel security and bug fix update

kernel: net: hns3: do not allow call hns3_nic_net_open repeatedly kernel: net/mlx5e: Fix operation precedence bug in port timestamping napi_poll context kernel: net/mlx5e: fix a potential double-free in fs_any_create_groups kernel: Bluetooth: Avoid potential use-after-free in hci_error_reset kernel: crypto: qat - resolve race condition during AER recovery kernel: xen-netfront: Add missing skb_mark_for_recycle kernel: smb: client: fix UAF in smb2_reconnect_server() kernel: net/mlx5: Properly link new fs rules into the tree

SUSE-SU-2024:2008-1 — Security update for the Linux Kernel

Security update for the Linux Kernel

UBUNTU-CVE-2024-35870

Affected: Ubuntu:Pro:14.04:LTS: linux-azure, Ubuntu:Pro:16.04:LTS: linux-aws-hwe, Ubuntu:Pro:16.04:LTS: linux-azure, Ubuntu:Pro:16.04:LTS: linux-gcp, Ubuntu:Pro:16.04:LTS: linux-hwe, Ubuntu:16.04:LTS: linux-hwe-edge, Ubuntu:Pro:16.04:LTS: linux-oracle, Ubuntu:Pro:18.04:LTS: linux, Ubuntu:Pro:18.04:LTS: linux-aws, Ubuntu:18.04:LTS: linux-aws-5.0 and 172 more

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix UAF in smb2_reconnect_server() The UAF bug is due to smb2_reconnect_server() accessing a session that is already being teared down by another thread that is executing __cifs_put_smb_ses(). This can happen when (a) the client has connection to the server but no session or (b) another thread ends up setting @ses->ses_status again to something different than SES_EXITING. To fix this, we need to make sure to unconditionally set @ses->ses_status to SES_EXITING and prevent any other threads from setting a new status while we're still tearing it down. The following can be reproduced by adding some delay to right after the ipc is freed in __cifs_put_smb_ses() - which will give smb2_reconnect_server() worker a chance to run and then accessing @ses->ipc: kinit ... mount.cifs //srv/share /mnt/1 -o sec=krb5,nohandlecache,echo_interval=10 [disconnect srv] ls /mnt/1 &>/dev/null sleep 30 kdestroy [reconnect srv] sleep 10 umount /mnt/1 ... CIFS: VFS: Verify user has a krb5 ticket and keyutils is installed CIFS: VFS: \\srv Send error in SessSetup = -126 CIFS: VFS: Verify user has a krb5 ticket and keyutils is installed CIFS: VFS: \\srv Send error in SessSetup = -126 general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6b6b: 0000 [#1] PREEMPT SMP NOPTI CPU: 3 PID: 50 Comm: kworker/3:1 Not tainted 6.9.0-rc2 #1 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-1.fc39 04/01/2…

WID-SEC-W-2024-1188 — Linux Kernel: Mehrere Schwachstellen ermöglichen Denial of Service

Ein lokaler Angreifer kann mehrere Schwachstellen in Linux Kernel ausnutzen, um einen Denial of Service Angriff durchzuführen.