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CVE-2026-98394— af_unix: Return immediately when manage_oob() returns NULL for 0-length buffer.

一分钟漏洞结论

影响对象
Linux Linux
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。

In the Linux kernel, the following vulnerability has been resolved: af_unix: Return immediately when manage_oob() returns NULL for 0-length buffer. Fahad Alharbi reported that recv(0, MSG_PEEK) triggers busy-wait in unix_stream_read_generic() if recv() is bloc

影响版本矩阵 10

厂商产品 版本范围状态
Linux Linux 314001f0bf927015e459c9d387d62a231fe93af3< 3d3c7a3df66b2ca3d2cd1a2a0c37eb701feba713 affected
314001f0bf927015e459c9d387d62a231fe93af3< d5dd55b316ca229a4cbf11729483ba5bb57233e7 affected
314001f0bf927015e459c9d387d62a231fe93af3< c81c5be3826c8467945b964d0cf7f7b3d65461db affected
314001f0bf927015e459c9d387d62a231fe93af3< 6e5ee08eb5858d175da6768d75d163817b6a9d4a affected
5.15 affected
< 5.15 unaffected
6.12.111≤ 6.12.* unaffected
6.18.53≤ 6.18.* unaffected
… +2 条更多
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一、 漏洞 CVE-2026-98394 基础信息

漏洞信息

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Vulnerability Title
af_unix: Return immediately when manage_oob() returns NULL for 0-length buffer.
来源: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: af_unix: Return immediately when manage_oob() returns NULL for 0-length buffer. Fahad Alharbi reported that recv(0, MSG_PEEK) triggers busy-wait in unix_stream_read_generic() if recv() is blocking and the last skb in the queue is MSG_OOB skb. In such a situation, TCP returns 0 immediately regardless of blocking or non-blocking. Let's follow the behaviour.
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
N/A
来源: CVE Program / CVE List V5

受影响产品

厂商 产品 影响版本 CPE 订阅
Linux Linux 314001f0bf927015e459c9d387d62a231fe93af3 ~ 3d3c7a3df66b2ca3d2cd1a2a0c37eb701feba713 -
Linux Linux 5.15 -

二、漏洞 CVE-2026-98394 的公开POC

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三、漏洞 CVE-2026-98394 的情报信息

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CVE-2026-98394 其他参考 (4)

同批安全公告 · Linux · 2026-10-14 · 共 46 条

CVE-2026-98399 s390/ipl: Fix NULL deref in dump_reipl without re-IPL parm block
CVE-2026-98395 powerpc/entry: Fix irq_soft_mask corruption on replayed interrupt exit
CVE-2026-98393 net: ipv4: Fix UDP length overflow with PMTU discover and big MTU
CVE-2026-98391 drm/xe: Guard page-fault worker with runtime PM check
CVE-2026-98389 drm/amdgpu: skip gfx switch_power_profile during GPU reset
CVE-2026-98388 exec: do_close_on_exec() before taking exec_update_lock
CVE-2026-98387 s390/crypto: Fix skcipher_walk return code handling in aes_s390
CVE-2026-98386 scsi: qla2xxx: Use memset_io() to clear QLAFX00 request ring slot
CVE-2026-98390 x86/amd_node: Avoid divide by zero on virtualized systems
CVE-2026-98398 locking/lockdep: Invalidate stale class_cache entries for zapped classes
CVE-2026-98397 platform/x86: x86-android-tablets: hold device reference for secondary fwnode teardown
CVE-2026-98400 s390/ipl: Fix NULL deref in kdump without re-IPL parm block
CVE-2026-98402 net: icmp: avoid invalid transport header access in icmp_send tracepoint
CVE-2026-98401 net: iptunnel: fix stale transport header during tunnel decapsulation
CVE-2026-98403 s390/boot: Avoid IPL parameter append past command line
CVE-2026-98404 drm/virtio: Fix a NULL vs ERR_PTR() bug in virtio_gpu_user_framebuffer_create()
CVE-2026-98405 smb: client: fix missing iov bounds check in parse_posix_sids()
CVE-2026-98406 wifi: mac80211: avoid WARN in set_bitrate_mask when sdata not in driver
CVE-2026-98408 watchdog: rzv2h: Avoid division by zero
CVE-2026-98407 wifi: rsi: fix heap OOB write on key removal

显示前 20 条，共 46 条。 查看全部 &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2026-98394

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