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CVE-2024-26621— mm: huge_memory: don't force huge page alignment on 32 bit

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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，该漏洞源于在 32 位系统上强制大页对齐。

CVSS 8.2 · High EPSS 1.01% · P62

Possible ATT&CK Techniques 1 AI

T1620 · Reflective Code Loading

Affected Version Matrix 10

VendorProduct Version RangeStatus
Linux Linux 1854bc6e2420472676c5c90d3d6b15f6cd640e40< 87632bc9ecff5ded93433bc0fca428019bdd1cfe affected
1854bc6e2420472676c5c90d3d6b15f6cd640e40< 6ea9aa8d97e6563676094cb35755884173269555 affected
1854bc6e2420472676c5c90d3d6b15f6cd640e40< 7432376c913381c5f24d373a87ff629bbde94b47 affected
1854bc6e2420472676c5c90d3d6b15f6cd640e40< 4ef9ad19e17676b9ef071309bc62020e2373705d affected
5.18 affected
< 5.18 unaffected
6.1.81≤ 6.1.* unaffected
6.6.46≤ 6.6.* unaffected
… +2 more rows
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I. Basic Information for CVE-2024-26621

Vulnerability Information
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Vulnerability Title
mm: huge_memory: don't force huge page alignment on 32 bit
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: mm: huge_memory: don't force huge page alignment on 32 bit commit efa7df3e3bb5 ("mm: align larger anonymous mappings on THP boundaries") caused two issues [1] [2] reported on 32 bit system or compat userspace. It doesn't make too much sense to force huge page alignment on 32 bit system due to the constrained virtual address space. [1] https://lore.kernel.org/linux-mm/d0a136a0-4a31-46bc-adf4-2db109a61672@kernel.org/ [2] https://lore.kernel.org/linux-mm/CAJuCfpHXLdQy1a2B6xN2d7quTYwg2OoZseYPZTRpU0eHHKD-sQ@mail.gmail.com/
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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，该漏洞源于在 32 位系统上强制大页对齐。
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

Vendor Product Affected Versions CPE Subscribe
Linux Linux 1854bc6e2420472676c5c90d3d6b15f6cd640e40 ~ 87632bc9ecff5ded93433bc0fca428019bdd1cfe -
Linux Linux 5.18 -

II. Public POCs for CVE-2024-26621

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III. Intelligence Information for CVE-2024-26621

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Mailing List Discussions for CVE-2024-26621 (22)

Security Blog Posts for CVE-2024-26621 (1)

Other References for CVE-2024-26621 (4)

Same Patch Batch · Linux · 2024-03-02 · 57 CVEs total

CVE-2023-52515 9.8 CRITICAL RDMA/srp: Do not call scsi_done() from srp_abort()
CVE-2023-52530 8.8 HIGH wifi: mac80211: fix potential key use-after-free
CVE-2023-52522 8.8 HIGH net: fix possible store tearing in neigh_periodic_work()
CVE-2023-52502 8.8 HIGH net: nfc: fix races in nfc_llcp_sock_get() and nfc_llcp_sock_get_sn()
CVE-2023-52517 7.8 HIGH spi: sun6i: fix race between DMA RX transfer completion and RX FIFO drain
CVE-2023-52503 7.8 HIGH tee: amdtee: fix use-after-free vulnerability in amdtee_close_session
CVE-2023-52574 7.8 HIGH team: fix null-ptr-deref when team device type is changed
CVE-2023-52523 7.8 HIGH bpf, sockmap: Reject sk_msg egress redirects to non-TCP sockets
CVE-2023-52572 7.8 HIGH cifs: Fix UAF in cifs_demultiplex_thread()
CVE-2023-52509 7.8 HIGH ravb: Fix use-after-free issue in ravb_tx_timeout_work()
CVE-2023-52513 7.5 HIGH RDMA/siw: Fix connection failure handling
CVE-2023-52565 7.1 HIGH media: uvcvideo: Fix OOB read
CVE-2023-52562 mm/slab_common: fix slab_caches list corruption after kmem_cache_destroy()
CVE-2023-52563 drm/meson: fix memory leak on ->hpd_notify callback
CVE-2023-52564 Revert "tty: n_gsm: fix UAF in gsm_cleanup_mux"
CVE-2023-52560 mm/damon/vaddr-test: fix memory leak in damon_do_test_apply_three_regions()
CVE-2023-52559 iommu/vt-d: Avoid memory allocation in iommu_suspend()
CVE-2023-52528 net: usb: smsc75xx: Fix uninit-value access in __smsc75xx_read_reg
CVE-2023-52561 arm64: dts: qcom: sdm845-db845c: Mark cont splash memory region as reserved
CVE-2023-52566 nilfs2: fix potential use after free in nilfs_gccache_submit_read_data()

Showing top 20 of 57 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-26621

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