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CVE-2022-49344— af_unix: Fix a data-race in unix_dgram_peer_wake_me().

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unix_dgram_peer_wake_me未使用锁检查接收队列，可能导致数据竞争。

AI Predicted 5.3 Difficulty: Easy EPSS 0.19% · P8

Possible ATT&CK Techniques 1 AI

T1059 · Command and Scripting Interpreter

Affected Version Matrix 36

VendorProduct Version RangeStatus
Linux Linux 7d267278a9ece963d77eefec61630223fce08c6c< 95f0ba806277733bf6024e23e27e1be773701cca affected
7d267278a9ece963d77eefec61630223fce08c6c< 556720013c36c193d9cbfb06e7b33e51f0c39fbf affected
7d267278a9ece963d77eefec61630223fce08c6c< c61848500a3fd6867dfa4834b8c7f97133eceb9f affected
7d267278a9ece963d77eefec61630223fce08c6c< c926ae58f24f7bd55aa2ea4add9f952032507913 affected
7d267278a9ece963d77eefec61630223fce08c6c< 71e8bfc7f838cabc60cba24e09ca84c4f8321ab2 affected
7d267278a9ece963d77eefec61630223fce08c6c< 8801eb3ccd2e4e3b1a01449383e3321ae6dbd9d6 affected
7d267278a9ece963d77eefec61630223fce08c6c< 662a80946ce13633ae90a55379f1346c10f0c432 affected
60bc010667ef06e0fb08d5ec599c0977adc2ac72 affected
… +28 more rows
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I. Basic Information for CVE-2022-49344

Vulnerability Information
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Vulnerability Title
af_unix: Fix a data-race in unix_dgram_peer_wake_me().
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: af_unix: Fix a data-race in unix_dgram_peer_wake_me(). unix_dgram_poll() calls unix_dgram_peer_wake_me() without `other`'s lock held and check if its receive queue is full. Here we need to use unix_recvq_full_lockless() instead of unix_recvq_full(), otherwise KCSAN will report a data-race.
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unix_dgram_peer_wake_me未使用锁检查接收队列，可能导致数据竞争。
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 7d267278a9ece963d77eefec61630223fce08c6c ~ 95f0ba806277733bf6024e23e27e1be773701cca -
Linux Linux 4.4 -

II. Public POCs for CVE-2022-49344

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III. Intelligence Information for CVE-2022-49344

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Patches & Fixes for CVE-2022-49344 (7)

Same Patch Batch · Linux · 2025-02-26 · 706 CVEs total

CVE-2022-49149 9.8 CRITICAL rxrpc: Fix call timer start racing with call destruction
CVE-2022-49561 9.8 CRITICAL netfilter: conntrack: re-fetch conntrack after insertion
CVE-2022-49407 9.8 CRITICAL dlm: fix plock invalid read
CVE-2022-49362 9.8 CRITICAL NFSD: Fix potential use-after-free in nfsd_file_put()
CVE-2022-49280 9.8 CRITICAL NFSD: prevent underflow in nfssvc_decode_writeargs()
CVE-2022-49356 9.8 CRITICAL SUNRPC: Trap RDMA segment overflows
CVE-2022-49418 9.8 CRITICAL NFSv4: Fix free of uninitialized nfs4_label on referral lookup.
CVE-2022-49094 9.8 CRITICAL net/tls: fix slab-out-of-bounds bug in decrypt_internal
CVE-2022-49093 9.8 CRITICAL skbuff: fix coalescing for page_pool fragment recycling
CVE-2022-49260 9.8 CRITICAL crypto: hisilicon/sec - fix the aead software fallback for engine
CVE-2022-49194 9.8 CRITICAL net: bcmgenet: Use stronger register read/writes to assure ordering
CVE-2022-49201 9.8 CRITICAL ibmvnic: fix race between xmit and reset
CVE-2022-49058 9.1 CRITICAL cifs: potential buffer overflow in handling symlinks
CVE-2022-49535 8.8 HIGH scsi: lpfc: Fix null pointer dereference after failing to issue FLOGI and PLOGI
CVE-2022-49159 8.8 HIGH scsi: qla2xxx: Implement ref count for SRB
CVE-2022-49138 8.8 HIGH Bluetooth: hci_event: Ignore multiple conn complete events
CVE-2022-49479 8.8 HIGH mt76: fix tx status related use-after-free race on station removal
CVE-2022-49470 8.8 HIGH Bluetooth: btmtksdio: fix use-after-free at btmtksdio_recv_event
CVE-2022-49111 8.8 HIGH Bluetooth: Fix use after free in hci_send_acl
CVE-2022-49114 8.8 HIGH scsi: libfc: Fix use after free in fc_exch_abts_resp()

Showing top 20 of 706 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2022-49344

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