Описание
Important: kernel security, bug fix, and enhancement update
The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
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kernel: fbcon: Set fb_display[i]->mode to NULL when the mode is released (CVE-2025-40323)
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kernel: smb: smbdirect: introduce smbdirect_socket.recv_io.credits.available (CVE-2026-31539)
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kernel: drm/amdgpu/vcn3: Prevent OOB reads when parsing dec msg (CVE-2026-46230)
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kernel: drm/amdgpu/vcn4: Prevent OOB reads when parsing IB (CVE-2026-46204)
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kernel: drm/amdgpu/vcn4: Prevent OOB reads when parsing dec msg (CVE-2026-46199)
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kernel: drm/amdgpu/userq: fix access to stale wptr mapping (CVE-2026-46311)
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kernel: netfilter: nf_queue: hold bridge skb->dev while queued (CVE-2026-52912)
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kernel: accel/ivpu: Add buffer overflow check in MS get_info_ioctl (CVE-2026-53203)
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kernel: drm/xe/eustall: Fix drm_dev_put called before stream disable in close (CVE-2026-53290)
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kernel: drm/virtio: use uninterruptible resv lock for plane updates (CVE-2026-64098)
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kernel: Linux kernel: PPPoE memory corruption via stale pointer (CVE-2026-68121)
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kernel: drm/amdgpu/vce: fix integer overflow in image size (CVE-2026-68108)
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kernel: drm/amdkfd: fix 32-bit overflow in CWSR total size calculation (CVE-2026-68257)
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kernel: drm/xe/rtp: Add RING_FORCE_TO_NONPRIV_DENY to OA whitelists (CVE-2026-68267)
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kernel: drm/xe: Hold a dma-buf reference for imported BOs (CVE-2026-68266)
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kernel: drm/amdgpu: Fix context pstate override handling (CVE-2026-68273)
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kernel: Linux kernel IPVS: Denial of Service due to stale memory references (CVE-2026-80714)
Bug Fix(es) and Enhancement(s):
- MADVISE i/o size in Rocky Linux 9 additionally limited by read_ahead_kb - Was addressed in Rocky Linux8 via Rocky Linux-22476 [rhel-9.8.z] (JIRA:Rocky Linux-260938)
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.
Затронутые продукты
Rocky Linux 9
Ссылки на источники
Исправления
- Red Hat - 2419883
- Red Hat - 2461575
- Red Hat - 2482533
- Red Hat - 2482543
- Red Hat - 2482649
- Red Hat - 2486470
- Red Hat - 2492105
- Red Hat - 2492798
- Red Hat - 2493739
- Red Hat - 2502536
- Red Hat - 2513233
- Red Hat - 2513361
- Red Hat - 2513372
- Red Hat - 2513414
- Red Hat - 2513429
- Red Hat - 2513434
- Red Hat - 2525436
Связанные уязвимости
ELSA-2026-71700: kernel security, bug fix, and enhancement update (IMPORTANT)
ELSA-2026-71602: kernel security, bug fix, and enhancement update (IMPORTANT)
In the Linux kernel, the following vulnerability has been resolved: fbcon: Set fb_display[i]->mode to NULL when the mode is released Recently, we discovered the following issue through syzkaller: BUG: KASAN: slab-use-after-free in fb_mode_is_equal+0x285/0x2f0 Read of size 4 at addr ff11000001b3c69c by task syz.xxx ... Call Trace: <TASK> dump_stack_lvl+0xab/0xe0 print_address_description.constprop.0+0x2c/0x390 print_report+0xb9/0x280 kasan_report+0xb8/0xf0 fb_mode_is_equal+0x285/0x2f0 fbcon_mode_deleted+0x129/0x180 fb_set_var+0xe7f/0x11d0 do_fb_ioctl+0x6a0/0x750 fb_ioctl+0xe0/0x140 __x64_sys_ioctl+0x193/0x210 do_syscall_64+0x5f/0x9c0 entry_SYSCALL_64_after_hwframe+0x76/0x7e Based on experimentation and analysis, during framebuffer unregistration, only the memory of fb_info->modelist is freed, without setting the corresponding fb_display[i]->mode to NULL for the freed modes. This leads to UAF issues during subsequent accesses. Here's an example of reproduction steps: 1. With /dev/fb0 ...