CVE-2024-26618— arm64/sme: Always exit sme_alloc() early with existing storage
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，该漏洞源于使用现有存储会导致提前退出 sme_alloc()。
Possible ATT&CK Techniques 1 AI
T1564.004 · NTFS File AttributesAffected Version Matrix 13
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 21614ba60883eb93b99a7ee4b41cb927f93b39ae< f6421555dbd7cb3d4d70b69f33f998aaeca1e3b5 |
affected |
5d0a8d2fba50e9c07cde4aad7fba28c008b07a5b< 569156e4fa347237f8fa2a7e935d860109c55ac4 |
affected | ||
5d0a8d2fba50e9c07cde4aad7fba28c008b07a5b< 814af6b4e6000e574e74d92197190edf07cc3680 |
affected | ||
5d0a8d2fba50e9c07cde4aad7fba28c008b07a5b< dc7eb8755797ed41a0d1b5c0c39df3c8f401b3d9 |
affected | ||
e01af8e26c23a08625a3dd6c8c472a1752d76cce |
affected | ||
6.1.47< 6.1.140 |
affected | ||
6.4.12< 6.5 |
affected | ||
6.5 |
affected | ||
| … +5 more rows | |||
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I. Basic Information for CVE-2024-26618
Vulnerability Information
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Vulnerability Title
arm64/sme: Always exit sme_alloc() early with existing storage
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved:
arm64/sme: Always exit sme_alloc() early with existing storage
When sme_alloc() is called with existing storage and we are not flushing we
will always allocate new storage, both leaking the existing storage and
corrupting the state. Fix this by separating the checks for flushing and
for existing storage as we do for SVE.
Callers that reallocate (eg, due to changing the vector length) should
call sme_free() themselves.
Source: CVE Program / CVE List V5
CVSS Information
N/A
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，该漏洞源于使用现有存储会导致提前退出 sme_alloc()。
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-2024-26618
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Patches & Fixes for CVE-2024-26618 (1)
Other References for CVE-2024-26618 (2)
Same Patch Batch · Linux · 2024-02-29 · 53 CVEs total
| CVE-2023-52480 | 9.8 CRITICAL | ksmbd: fix race condition between session lookup and expire |
| CVE-2023-52478 | 8.8 HIGH | HID: logitech-hidpp: Fix kernel crash on receiver USB disconnect |
| CVE-2023-52479 | 8.8 HIGH | ksmbd: fix uaf in smb20_oplock_break_ack |
| CVE-2024-26620 | 8.2 HIGH | s390/vfio-ap: always filter entire AP matrix |
| CVE-2021-47068 | 7.8 HIGH | net/nfc: fix use-after-free llcp_sock_bind/connect |
| CVE-2023-52491 | 7.8 HIGH | media: mtk-jpeg: Fix use after free bug due to error path handling in mtk_jpeg_dec_device_ |
| CVE-2024-26608 | 7.8 HIGH | ksmbd: fix global oob in ksmbd_nl_policy |
| CVE-2023-52486 | 7.8 HIGH | drm: Don't unref the same fb many times by mistake due to deadlock handling |
| CVE-2024-26610 | 7.8 HIGH | wifi: iwlwifi: fix a memory corruption |
| CVE-2024-26614 | 7.8 HIGH | tcp: make sure init the accept_queue's spinlocks once |
| CVE-2024-26617 | 7.8 HIGH | fs/proc/task_mmu: move mmu notification mechanism inside mm lock |
| CVE-2023-52483 | 7.8 HIGH | mctp: perform route lookups under a RCU read-side lock |
| CVE-2021-47060 | 7.8 HIGH | KVM: Stop looking for coalesced MMIO zones if the bus is destroyed |
| CVE-2021-47061 | 7.8 HIGH | KVM: Destroy I/O bus devices on unregister failure _after_ sync'ing SRCU |
| CVE-2024-26611 | 7.5 HIGH | xsk: fix usage of multi-buffer BPF helpers for ZC XDP |
| CVE-2021-47066 | 7.1 HIGH | async_xor: increase src_offs when dropping destination page |
| CVE-2023-52497 | 7.1 HIGH | erofs: fix lz4 inplace decompression |
| CVE-2021-47055 | 7.1 HIGH | mtd: require write permissions for locking and badblock ioctls |
| CVE-2021-47058 | regmap: set debugfs_name to NULL after it is freed | |
| CVE-2023-52477 | usb: hub: Guard against accesses to uninitialized BOS descriptors |
Showing top 20 of 53 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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Same vendor: Linux
-
CVE-2026-98384
bpf: Fix out-of-bounds read of sk_protocol in bpf_sock_destr -
CVE-2026-98383
bpf: Disallow bpf_skb_pull_data() for LWT_SEG6LOCAL -
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bpf: Reject dev-bound-only programs on other devices -
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veth: manage XDP program pointers during channel resize -
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V. Comments for CVE-2024-26618
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