OESA-2026-3452

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Source

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2026-3452

Import Source

https://repo.openeuler.org/security/data/osv/OESA-2026-3452.json

JSON Data

https://api.osv.dev/v1/vulns/OESA-2026-3452

Upstream

CVE-2026-63860

CVE-2026-64546

Published

2026-08-20T09:58:33Z

Modified

2026-08-20T10:15:06Z

Severity

5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator

Summary

kernel security update

Details

The Linux Kernel, the operating system core itself.

Security Fix(es):

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

RDMA/core: Prefer NLA_NUL_STRING

These attributes are evaluated as c-string (passed to strcmp), but NLA_STRING doesn't check for the presence of a \0 terminator.

Either this needs to switch to nla_strcmp() and needs to adjust printf fmt specifier to not use plain %s, or this needs to use NLA_NUL_STRING.

As the code has been this way for long time, it seems to me that userspace does include the terminating nul, even tough its not enforced so far, and thus NLA_NUL_STRING use is the simpler solution.(CVE-2026-63860)

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

drm/edid: fix OOB read in drm_parse_tiled_block()

drm_parse_tiled_block() casts the DisplayID block to a struct displayid_tiled_block and reads the full fixed layout up to tile->topology_id[7] without checking block->num_bytes. The DisplayID iterator only validates the declared payload length, so a crafted EDID can advertise a tiled-display block (tag DATA_BLOCK_TILED_DISPLAY, or DATA_BLOCK_2_TILED_DISPLAY_TOPOLOGY for v2.0) with a small num_bytes at the end of a DisplayID extension. The read then runs past the end of the exact-sized kmemdup()'d EDID allocation, a heap out-of-bounds read.

Reject blocks shorter than the spec's 22-byte tiled payload before reading the fixed struct, as drm_parse_vesa_mso_data() already does.

BUG: KASAN: slab-out-of-bounds in drm_edid_connector_update Read of size 2 at addr ffff888010077700 by task exploit/147 dump_stack_lvl (lib/dump_stack.c:94 ...) print_report (mm/kasan/report.c:378 ...) kasan_report (mm/kasan/report.c:595) drm_edid_connector_update (drivers/gpu/drm/drm_edid.c:7581) bochs_connector_helper_get_modes (drivers/gpu/drm/tiny/bochs.c:574) drm_helper_probe_single_connector_modes (drivers/gpu/drm/drm_probe_helper.c:426) status_store (drivers/gpu/drm/drm_sysfs.c:219) ... vfs_write (fs/read_write.c:595 fs/read_write.c:688) ksys_write (fs/read_write.c:740)(CVE-2026-64546)

Database specific

{
    "severity": "Medium"
}

References

Affected packages

openEuler:20.03-LTS-SP4 / kernel

Package

Name: kernel
Purl: pkg:rpm/openEuler/kernel&distro=openEuler-20.03-LTS-SP4

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

4.19.90-2608.4.0.0386.oe2003sp4

Ecosystem specific

{
    "aarch64": [
        "bpftool-4.19.90-2608.4.0.0386.oe2003sp4.aarch64.rpm",
        "bpftool-debuginfo-4.19.90-2608.4.0.0386.oe2003sp4.aarch64.rpm",
        "kernel-4.19.90-2608.4.0.0386.oe2003sp4.aarch64.rpm",
        "kernel-debuginfo-4.19.90-2608.4.0.0386.oe2003sp4.aarch64.rpm",
        "kernel-debugsource-4.19.90-2608.4.0.0386.oe2003sp4.aarch64.rpm",
        "kernel-devel-4.19.90-2608.4.0.0386.oe2003sp4.aarch64.rpm",
        "kernel-source-4.19.90-2608.4.0.0386.oe2003sp4.aarch64.rpm",
        "kernel-tools-4.19.90-2608.4.0.0386.oe2003sp4.aarch64.rpm",
        "kernel-tools-debuginfo-4.19.90-2608.4.0.0386.oe2003sp4.aarch64.rpm",
        "kernel-tools-devel-4.19.90-2608.4.0.0386.oe2003sp4.aarch64.rpm",
        "perf-4.19.90-2608.4.0.0386.oe2003sp4.aarch64.rpm",
        "perf-debuginfo-4.19.90-2608.4.0.0386.oe2003sp4.aarch64.rpm",
        "python2-perf-4.19.90-2608.4.0.0386.oe2003sp4.aarch64.rpm",
        "python2-perf-debuginfo-4.19.90-2608.4.0.0386.oe2003sp4.aarch64.rpm",
        "python3-perf-4.19.90-2608.4.0.0386.oe2003sp4.aarch64.rpm",
        "python3-perf-debuginfo-4.19.90-2608.4.0.0386.oe2003sp4.aarch64.rpm"
    ],
    "src": [
        "kernel-4.19.90-2608.4.0.0386.oe2003sp4.src.rpm"
    ],
    "x86_64": [
        "bpftool-4.19.90-2608.4.0.0386.oe2003sp4.x86_64.rpm",
        "bpftool-debuginfo-4.19.90-2608.4.0.0386.oe2003sp4.x86_64.rpm",
        "kernel-4.19.90-2608.4.0.0386.oe2003sp4.x86_64.rpm",
        "kernel-debuginfo-4.19.90-2608.4.0.0386.oe2003sp4.x86_64.rpm",
        "kernel-debugsource-4.19.90-2608.4.0.0386.oe2003sp4.x86_64.rpm",
        "kernel-devel-4.19.90-2608.4.0.0386.oe2003sp4.x86_64.rpm",
        "kernel-source-4.19.90-2608.4.0.0386.oe2003sp4.x86_64.rpm",
        "kernel-tools-4.19.90-2608.4.0.0386.oe2003sp4.x86_64.rpm",
        "kernel-tools-debuginfo-4.19.90-2608.4.0.0386.oe2003sp4.x86_64.rpm",
        "kernel-tools-devel-4.19.90-2608.4.0.0386.oe2003sp4.x86_64.rpm",
        "perf-4.19.90-2608.4.0.0386.oe2003sp4.x86_64.rpm",
        "perf-debuginfo-4.19.90-2608.4.0.0386.oe2003sp4.x86_64.rpm",
        "python2-perf-4.19.90-2608.4.0.0386.oe2003sp4.x86_64.rpm",
        "python2-perf-debuginfo-4.19.90-2608.4.0.0386.oe2003sp4.x86_64.rpm",
        "python3-perf-4.19.90-2608.4.0.0386.oe2003sp4.x86_64.rpm",
        "python3-perf-debuginfo-4.19.90-2608.4.0.0386.oe2003sp4.x86_64.rpm"
    ]
}

Database specific

source

"https://repo.openeuler.org/security/data/osv/OESA-2026-3452.json"