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CVE-2026-43078— crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl

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af_alg_pull_tsgl中页面重新分配时可能尝试重新分配多余页面，可能导致溢出。

CVSS 7.8 · High EPSS 0.13% · P3

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux e870456d8e7c8d57c059ea479b5aadbb55ff4c3a< fa48d3ea9cdbfb28c1fd6756c6c5cd01351aa51e affected
e870456d8e7c8d57c059ea479b5aadbb55ff4c3a< 2b781d1d4f933990318bcc5c68fb75a717379e42 affected
e870456d8e7c8d57c059ea479b5aadbb55ff4c3a< f7826bc0b39928a4a22f6b815dd9940b22a63503 affected
e870456d8e7c8d57c059ea479b5aadbb55ff4c3a< 710a4ce5d7afd9fe082c75dec282ab4a11c0fe71 affected
e870456d8e7c8d57c059ea479b5aadbb55ff4c3a< c8369a6d62f5abde9cbd4b62c45bf4b996be2468 affected
e870456d8e7c8d57c059ea479b5aadbb55ff4c3a< dea5fcf085f977b6c2de1b2d4ec4767b6c840d1f affected
e870456d8e7c8d57c059ea479b5aadbb55ff4c3a< 9532501e0f1b200ea80baa0e33e0b06da10bb271 affected
e870456d8e7c8d57c059ea479b5aadbb55ff4c3a< 31d00156e50ecad37f2cb6cbf04aaa9a260505ef affected
… +10 more rows
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I. Basic Information for CVE-2026-43078

Vulnerability Information
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Vulnerability Title
crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: crypto: af_alg - Fix page reassignment overflow in af_alg_pull_tsgl When page reassignment was added to af_alg_pull_tsgl the original loop wasn't updated so it may try to reassign one more page than necessary. Add the check to the reassignment so that this does not happen. Also update the comment which still refers to the obsolete offset argument.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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af_alg_pull_tsgl中页面重新分配时可能尝试重新分配多余页面，可能导致溢出。
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 e870456d8e7c8d57c059ea479b5aadbb55ff4c3a ~ fa48d3ea9cdbfb28c1fd6756c6c5cd01351aa51e -
Linux Linux 4.14 -

II. Public POCs for CVE-2026-43078

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III. Intelligence Information for CVE-2026-43078

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Patches & Fixes for CVE-2026-43078 (8)

Same Patch Batch · Linux · 2026-05-06 · 224 CVEs total

CVE-2026-43208 9.8 CRITICAL net: do not pass flow_id to set_rps_cpu()
CVE-2026-43198 9.8 CRITICAL tcp: fix potential race in tcp_v6_syn_recv_sock()
CVE-2026-43125 9.8 CRITICAL dlm: validate length in dlm_search_rsb_tree
CVE-2026-43186 9.8 CRITICAL ipv6: ioam: fix heap buffer overflow in __ioam6_fill_trace_data()
CVE-2026-43185 9.8 CRITICAL ksmbd: fix signededness bug in smb_direct_prepare_negotiation()
CVE-2026-43114 9.4 CRITICAL netfilter: nft_set_pipapo_avx2: don't return non-matching entry on expiry
CVE-2026-43197 9.1 CRITICAL netconsole: avoid OOB reads, msg is not nul-terminated
CVE-2026-43117 9.1 CRITICAL btrfs: tracepoints: get correct superblock from dentry in event btrfs_sync_file()
CVE-2026-43083 9.1 CRITICAL net: ioam6: fix OOB and missing lock
CVE-2026-43113 8.8 HIGH wifi: wl1251: validate packet IDs before indexing tx_frames
CVE-2026-43112 8.8 HIGH fs/smb/client: fix out-of-bounds read in cifs_sanitize_prepath
CVE-2026-43158 8.8 HIGH xfs: fix freemap adjustments when adding xattrs to leaf blocks
CVE-2026-43232 8.8 HIGH net: wan: farsync: Fix use-after-free bugs caused by unfinished tasklets
CVE-2026-43172 8.8 HIGH wifi: iwlwifi: fix 22000 series SMEM parsing
CVE-2026-43176 8.8 HIGH wifi: rtw89: pci: validate release report content before using for RTL8922DE
CVE-2026-43283 8.8 HIGH net: ethernet: ec_bhf: Fix dma_free_coherent() dma handle
CVE-2026-43215 8.8 HIGH cifs: Fix locking usage for tcon fields
CVE-2026-43249 8.8 HIGH 9p/xen: protect xen_9pfs_front_free against concurrent calls
CVE-2026-43110 8.8 HIGH wifi: brcmfmac: validate bsscfg indices in IF events
CVE-2026-43187 8.8 HIGH xfs: delete attr leaf freemap entries when empty

Showing top 20 of 224 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-43078

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