CVE-2026-46284— mm/hugetlb: fix early boot crash on parameters without '=' separator
Possible ATT&CK Techniques 1AI
T1496 · Resource HijackingAffected Version Matrix 8
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 5b47c02967ab770aa7661c8863a21b2fd59e35ff< 2774bcf714739cc6bb86f8812167bb9fbda70f6a | affected |
5b47c02967ab770aa7661c8863a21b2fd59e35ff< 357c6d084b6137ae640209c5bfd01180f985c015 | affected | ||
5b47c02967ab770aa7661c8863a21b2fd59e35ff< c45b354911d01565156e38d7f6bc07edb51fc34c | affected | ||
6.15 | affected | ||
< 6.15 | unaffected | ||
6.18.27≤ 6.18.* | unaffected | ||
7.0.4≤ 7.0.* | unaffected | ||
7.1≤ * | unaffected |
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I. Basic Information for CVE-2026-46284
Vulnerability Information
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Vulnerability Title
mm/hugetlb: fix early boot crash on parameters without '=' separator
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mm/hugetlb: fix early boot crash on parameters without '=' separator If hugepages, hugepagesz, or default_hugepagesz are specified on the kernel command line without the '=' separator, early parameter parsing passes NULL to hugetlb_add_param(), which dereferences it in strlen() and can crash the system during early boot. Reject NULL values in hugetlb_add_param() and return -EINVAL instead.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于hugetlb参数解析时未处理空值，可能导致系统崩溃。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-46284
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-46284 (3)
Same Patch Batch · Linux · 2026-06-08 · 41 CVEs total
| CVE-2026-46289 | 9.8 CRITICAL | lib/scatterlist: fix length calculations in extract_kvec_to_sg |
| CVE-2026-46288 | 8.4 HIGH | of: unittest: fix use-after-free in of_unittest_changeset() |
| CVE-2026-46307 | 8.3 HIGH | wifi: ath5k: do not access array OOB |
| CVE-2026-46303 | 8.2 HIGH | isofs: validate Rock Ridge CE continuation extent against volume size |
| CVE-2026-46275 | 7.8 HIGH | Bluetooth: hci_uart: fix UAFs and race conditions in close and init paths |
| CVE-2026-46277 | 7.8 HIGH | mm/zone_device: do not touch device folio after calling ->folio_free() |
| CVE-2026-46311 | 7.8 HIGH | drm/amdgpu/userq: fix access to stale wptr mapping |
| CVE-2026-46274 | 7.8 HIGH | io-wq: check that the predecessor is hashed in io_wq_remove_pending() |
| CVE-2026-46280 | 7.8 HIGH | lib: test_hmm: evict device pages on file close to avoid use-after-free |
| CVE-2026-46306 | 7.5 HIGH | flow_dissector: do not dissect PPPoE PFC frames |
| CVE-2026-46304 | 7.5 HIGH | nvmet: avoid recursive nvmet-wq flush in nvmet_ctrl_free |
| CVE-2026-46299 | 7.0 HIGH | hfsplus: fix held lock freed on hfsplus_fill_super() |
| CVE-2025-71315 | drm/vkms: Convert to DRM's vblank timer | |
| CVE-2026-46287 | net: txgbe: fix RTNL assertion warning when remove module | |
| CVE-2026-46286 | leds: qcom-lpg: Check for array overflow when selecting the high resolution | |
| CVE-2026-46285 | mtd: docg3: fix use-after-free in docg3_release() | |
| CVE-2026-46283 | tpm: Use kfree_sensitive() to free auth session in tpm_dev_release() | |
| CVE-2026-46282 | iio: frequency: admv1013: fix NULL pointer dereference on str | |
| CVE-2026-46281 | vmalloc: fix buffer overflow in vrealloc_node_align() | |
| CVE-2026-46279 | mm/alloc_tag: clear codetag for pages allocated before page_ext initialization |
Showing top 20 of 41 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-52910
bpf: Free reuseport cBPF prog after RCU grace period. - CVE-2026-52909
ip6_vti: set netns_immutable on the fallback device. - CVE-2026-52908
RDMA: During rereg_mr ensure that REREG_ACCESS is compatible - CVE-2026-46331
net/sched: fix pedit partial COW leading to page cache corru - CVE-2026-52907
media: rockchip: rkcif: fix off by one bugs
Same vendor: Linux
- CVE-2026-52910
bpf: Free reuseport cBPF prog after RCU grace period. - CVE-2026-52909
ip6_vti: set netns_immutable on the fallback device. - CVE-2026-52908
RDMA: During rereg_mr ensure that REREG_ACCESS is compatible - CVE-2026-46331
net/sched: fix pedit partial COW leading to page cache corru - CVE-2026-52907
media: rockchip: rkcif: fix off by one bugs
V. Comments for CVE-2026-46284
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