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CVE-2025-38079— crypto: algif_hash - fix double free in hash_accept

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hash_accept中的双重释放，可能导致内存释放后重用。

CVSS 7.8 · High EPSS 0.21% · P11

Possible ATT&CK Techniques 1 AI

T1211 · Exploitation for Stealth

Affected Version Matrix 18

VendorProduct Version RangeStatus
Linux Linux fe869cdb89c95d060c77eea20204d6c91f233b53< 5bff312b59b3f2a54ff504e4f4e47272b64f3633 affected
fe869cdb89c95d060c77eea20204d6c91f233b53< bf7bba75b91539e93615f560893a599c1e1c98bf affected
fe869cdb89c95d060c77eea20204d6c91f233b53< c3059d58f79fdfb2201249c2741514e34562b547 affected
fe869cdb89c95d060c77eea20204d6c91f233b53< f0f3d09f53534ea385d55ced408f2b67059b16e4 affected
fe869cdb89c95d060c77eea20204d6c91f233b53< 134daaba93193df9e988524b5cd2f52d15eb1993 affected
fe869cdb89c95d060c77eea20204d6c91f233b53< 2f45a8d64fb4ed4830a4b3273834ecd6ca504896 affected
fe869cdb89c95d060c77eea20204d6c91f233b53< 0346f4b742345d1c733c977f3a7aef5a6419a967 affected
fe869cdb89c95d060c77eea20204d6c91f233b53< b2df03ed4052e97126267e8c13ad4204ea6ba9b6 affected
… +10 more rows
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I. Basic Information for CVE-2025-38079

Vulnerability Information
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Vulnerability Title
crypto: algif_hash - fix double free in hash_accept
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: crypto: algif_hash - fix double free in hash_accept If accept(2) is called on socket type algif_hash with MSG_MORE flag set and crypto_ahash_import fails, sk2 is freed. However, it is also freed in af_alg_release, leading to slab-use-after-free error.
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hash_accept中的双重释放，可能导致内存释放后重用。
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 fe869cdb89c95d060c77eea20204d6c91f233b53 ~ 5bff312b59b3f2a54ff504e4f4e47272b64f3633 -
Linux Linux 2.6.38 -

II. Public POCs for CVE-2025-38079

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III. Intelligence Information for CVE-2025-38079

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Same Patch Batch · Linux · 2025-06-18 · 362 CVEs total

CVE-2025-38075 9.8 CRITICAL scsi: target: iscsi: Fix timeout on deleted connection
CVE-2022-50098 8.8 HIGH scsi: qla2xxx: Fix crash due to stale SRB access around I/O timeouts
CVE-2022-49934 8.8 HIGH wifi: mac80211: Fix UAF in ieee80211_scan_rx()
CVE-2022-50164 8.8 HIGH wifi: iwlwifi: mvm: fix double list_add at iwl_mvm_mac_wake_tx_queue
CVE-2025-38074 8.8 HIGH vhost-scsi: protect vq->log_used with vq->mutex
CVE-2022-49974 8.8 HIGH HID: nintendo: fix rumble worker null pointer deref
CVE-2025-38016 8.8 HIGH HID: bpf: abort dispatch if device destroyed
CVE-2025-38052 8.8 HIGH net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done
CVE-2022-49968 8.0 HIGH ieee802154/adf7242: defer destroy_workqueue call
CVE-2022-50028 7.8 HIGH gadgetfs: ep_io - wait until IRQ finishes
CVE-2022-50101 7.8 HIGH video: fbdev: vt8623fb: Check the size of screen before memset_io()
CVE-2022-49939 7.8 HIGH binder: fix UAF of ref->proc caused by race condition
CVE-2022-49935 7.8 HIGH dma-buf/dma-resv: check if the new fence is really later
CVE-2022-49950 7.8 HIGH misc: fastrpc: fix memory corruption on open
CVE-2025-38082 7.8 HIGH gpio: virtuser: fix potential out-of-bound write
CVE-2022-50182 7.8 HIGH media: imx-jpeg: Align upwards buffer size
CVE-2025-38058 7.8 HIGH __legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock
CVE-2025-38080 7.8 HIGH drm/amd/display: Increase block_sequence array size
CVE-2025-38065 7.8 HIGH orangefs: Do not truncate file size
CVE-2025-38068 7.8 HIGH crypto: lzo - Fix compression buffer overrun

Showing top 20 of 362 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-38079

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