Описание
ELSA-2026-47017: kernel security, bug fix, and enhancement update (IMPORTANT)
[6.12.0-211.40.1]
- Add new Oracle Linux Driver Signing (key 1) certificate [Orabug: 37985782]
- Disable UKI signing [Orabug: 36571828]
- Update Oracle Linux certificates (Kevin Lyons)
- Disable signing for aarch64 (Ilya Okomin)
- Oracle Linux RHCK Module Signing Key was added to the kernel trusted keys list (olkmod_signing_key.pem) [Orabug: 29539237]
- Update x509.genkey [Orabug: 24817676]
- Conflict with shim-ia32 and shim-x64 <= 15.3-1.0.5]
- Remove upstream reference during boot (Kevin Lyons) [Orabug: 34729535]
- Add Oracle Linux IMA certificates
- Update module name for cryptographic module [Orabug: 37400433]
- Clean git history at setup stage
[6.12.0-211.40.1]
- ipv6: fix possible UAF in icmpv6_rcv() (CKI Backport Bot) [RHEL-192215] {CVE-2026-53006}
- tipc: fix double-free in tipc_buf_append() (CKI Backport Bot) [RHEL-192181] {CVE-2026-52993}
- iommu/vt-d: Avoid NULL pointer dereference or refcount corruption (Eder Zulian) [RHEL-190344] {CVE-2026-53281}
- iommu/vt-d: Fix oops due to out of scope access (Eder Zulian) [RHEL-190344]
- net: bridge: use a stable FDB dst snapshot in RCU readers (Mohammad Heib) [RHEL-179338] {CVE-2026-46086}
- rxrpc: rxrpc_verify_data ensure rx_dec_buffer alloc (Marc Dionne) [RHEL-178254]
- rxrpc: Fix the ACK parser to extract the SACK table for parsing (Marc Dionne) [RHEL-178254]
- rxrpc: Fix RESPONSE packet verification to extract skb to a linear buffer (Marc Dionne) [RHEL-178254]
- rxrpc: Fix DATA decrypt vs splice() by copying data to buffer in recvmsg (Marc Dionne) [RHEL-178254]
- crypto/krb5, rxrpc: Fix lack of pre-decrypt/pre-verify length checks (Marc Dionne) [RHEL-178254]
- rxrpc: fix oversized RESPONSE authenticator length check (Marc Dionne) [RHEL-178254] {CVE-2026-31635}
- rxrpc: Fix integer overflow in rxgk_verify_response() (Marc Dionne) [RHEL-178254] {CVE-2026-31633}
- rxrpc: Fix leak of rxgk context in rxgk_verify_response() (Marc Dionne) [RHEL-178254] {CVE-2026-31632}
- rxrpc: Fix buffer overread in rxgk_do_verify_authenticator() (Marc Dionne) [RHEL-178254] {CVE-2026-31631}
- rxgk: Fix potential integer overflow in length check (Marc Dionne) [RHEL-178254]
- rxrpc: Fix rxkad crypto unalignment handling (Marc Dionne) [RHEL-178254]
- rxrpc: Fix memory leaks in rxkad_verify_response() (Marc Dionne) [RHEL-178254]
- rxrpc: Fix missing error checks for rxkad encryption/decryption failure (Marc Dionne) [RHEL-178254]
- rxrpc: Also unshare DATA/RESPONSE packets when paged frags are present (Marc Dionne) [RHEL-178254] {CVE-2026-43500}
- rxrpc: Fix conn-level packet handling to unshare RESPONSE packets (Marc Dionne) [RHEL-178254]
- rxrpc: only handle RESPONSE during service challenge (Marc Dionne) [RHEL-178254] {CVE-2026-31676}
Обновленные пакеты
Oracle Linux 10
Oracle Linux aarch64
kernel-cross-headers
6.12.0-211.40.1.el10_2
kernel-headers
6.12.0-211.40.1.el10_2
kernel-tools
6.12.0-211.40.1.el10_2
kernel-tools-libs
6.12.0-211.40.1.el10_2
kernel-tools-libs-devel
6.12.0-211.40.1.el10_2
libperf
6.12.0-211.40.1.el10_2
perf
6.12.0-211.40.1.el10_2
python3-perf
6.12.0-211.40.1.el10_2
rtla
6.12.0-211.40.1.el10_2
rv
6.12.0-211.40.1.el10_2
Oracle Linux x86_64
kernel
6.12.0-211.40.1.el10_2
kernel-abi-stablelists
6.12.0-211.40.1.el10_2
kernel-core
6.12.0-211.40.1.el10_2
kernel-cross-headers
6.12.0-211.40.1.el10_2
kernel-debug
6.12.0-211.40.1.el10_2
kernel-debug-core
6.12.0-211.40.1.el10_2
kernel-debug-devel
6.12.0-211.40.1.el10_2
kernel-debug-devel-matched
6.12.0-211.40.1.el10_2
kernel-debug-modules
6.12.0-211.40.1.el10_2
kernel-debug-modules-core
6.12.0-211.40.1.el10_2
kernel-debug-modules-extra
6.12.0-211.40.1.el10_2
kernel-debug-uki-virt
6.12.0-211.40.1.el10_2
kernel-devel
6.12.0-211.40.1.el10_2
kernel-devel-matched
6.12.0-211.40.1.el10_2
kernel-doc
6.12.0-211.40.1.el10_2
kernel-headers
6.12.0-211.40.1.el10_2
kernel-modules
6.12.0-211.40.1.el10_2
kernel-modules-core
6.12.0-211.40.1.el10_2
kernel-modules-extra
6.12.0-211.40.1.el10_2
kernel-modules-extra-matched
6.12.0-211.40.1.el10_2
kernel-tools
6.12.0-211.40.1.el10_2
kernel-tools-libs
6.12.0-211.40.1.el10_2
kernel-tools-libs-devel
6.12.0-211.40.1.el10_2
kernel-uki-virt
6.12.0-211.40.1.el10_2
kernel-uki-virt-addons
6.12.0-211.40.1.el10_2
libperf
6.12.0-211.40.1.el10_2
perf
6.12.0-211.40.1.el10_2
python3-perf
6.12.0-211.40.1.el10_2
rtla
6.12.0-211.40.1.el10_2
rv
6.12.0-211.40.1.el10_2
Связанные уязвимости
In the Linux kernel, the following vulnerability has been resolved: net: bridge: use a stable FDB dst snapshot in RCU readers Local FDB entries can be rewritten in place by `fdb_delete_local()`, which updates `f->dst` to another port or to `NULL` while keeping the entry alive. Several bridge RCU readers inspect `f->dst`, including `br_fdb_fillbuf()` through the `brforward_read()` sysfs path. These readers currently load `f->dst` multiple times and can therefore observe inconsistent values across the check and later dereference. In `br_fdb_fillbuf()`, this means a concurrent local-FDB update can change `f->dst` after the NULL check and before the `port_no` dereference, leading to a NULL-ptr-deref. Fix this by taking a single `READ_ONCE()` snapshot of `f->dst` in each affected RCU reader and using that snapshot for the rest of the access sequence. Also publish the in-place `f->dst` updates in `fdb_delete_local()` with `WRITE_ONCE()` so the readers and writer use matching access patter...
In the Linux kernel, the following vulnerability has been resolved: net: bridge: use a stable FDB dst snapshot in RCU readers Local FDB entries can be rewritten in place by `fdb_delete_local()`, which updates `f->dst` to another port or to `NULL` while keeping the entry alive. Several bridge RCU readers inspect `f->dst`, including `br_fdb_fillbuf()` through the `brforward_read()` sysfs path. These readers currently load `f->dst` multiple times and can therefore observe inconsistent values across the check and later dereference. In `br_fdb_fillbuf()`, this means a concurrent local-FDB update can change `f->dst` after the NULL check and before the `port_no` dereference, leading to a NULL-ptr-deref. Fix this by taking a single `READ_ONCE()` snapshot of `f->dst` in each affected RCU reader and using that snapshot for the rest of the access sequence. Also publish the in-place `f->dst` updates in `fdb_delete_local()` with `WRITE_ONCE()` so the readers and writer use matching access patter...
In the Linux kernel, the following vulnerability has been resolved: net: bridge: use a stable FDB dst snapshot in RCU readers Local FDB entries can be rewritten in place by `fdb_delete_local()`, which updates `f->dst` to another port or to `NULL` while keeping the entry alive. Several bridge RCU readers inspect `f->dst`, including `br_fdb_fillbuf()` through the `brforward_read()` sysfs path. These readers currently load `f->dst` multiple times and can therefore observe inconsistent values across the check and later dereference. In `br_fdb_fillbuf()`, this means a concurrent local-FDB update can change `f->dst` after the NULL check and before the `port_no` dereference, leading to a NULL-ptr-deref. Fix this by taking a single `READ_ONCE()` snapshot of `f->dst` in each affected RCU reader and using that snapshot for the rest of the access sequence. Also publish the in-place `f->dst` updates in `fdb_delete_local()` with `WRITE_ONCE()` so the readers and writer use matching access patte
