Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1020 CNY

100%
Buy Us a Coffee

CVE-2025-39880— libceph: fix invalid accesses to ceph_connection_v1_info

AI Predicted 4.3 Difficulty: Hard EPSS 0.02% · P5

Affected Version Matrix 14

VendorProductVersion RangeStatus
LinuxLinuxcd1a677cad994021b19665ed476aea63f5d54f31< ea12ab684f8ae8a6da11a22c78d94a79e2163096affected
cd1a677cad994021b19665ed476aea63f5d54f31< 591ea9c30737663a471b2bb07b27ddde86b020d5affected
cd1a677cad994021b19665ed476aea63f5d54f31< 23538cfbeed87159a5ac6c61e7a6de3d8d4486a8affected
cd1a677cad994021b19665ed476aea63f5d54f31< 35dbbc3dbf8bccb2d77c68444f42c1e6d2d27983affected
cd1a677cad994021b19665ed476aea63f5d54f31< 6bd8b56899be0b514945f639a89ccafb8f8dfaefaffected
cd1a677cad994021b19665ed476aea63f5d54f31< cdbc9836c7afadad68f374791738f118263c5371affected
5.11affected
< 5.11unaffected
… +6 more rows
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2025-39880

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
libceph: fix invalid accesses to ceph_connection_v1_info
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: libceph: fix invalid accesses to ceph_connection_v1_info There is a place where generic code in messenger.c is reading and another place where it is writing to con->v1 union member without checking that the union member is active (i.e. msgr1 is in use). On 64-bit systems, con->v1.auth_retry overlaps with con->v2.out_iter, so such a read is almost guaranteed to return a bogus value instead of 0 when msgr2 is in use. This ends up being fairly benign because the side effect is just the invalidation of the authorizer and successive fetching of new tickets. con->v1.connect_seq overlaps with con->v2.conn_bufs and the fact that it's being written to can cause more serious consequences, but luckily it's not something that happens often.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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，该漏洞源于未检查con->v1联合成员是否处于活动状态，可能导致无效访问。
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

VendorProductAffected VersionsCPESubscribe
LinuxLinux cd1a677cad994021b19665ed476aea63f5d54f31 ~ ea12ab684f8ae8a6da11a22c78d94a79e2163096 -
LinuxLinux 5.11 -

II. Public POCs for CVE-2025-39880

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-39880

请登录查看更多情报信息。
Patch · 1

Same Patch Batch · Linux · 2025-09-23 · 21 CVEs total

CVE-2025-39879ceph: always call ceph_shift_unused_folios_left()
CVE-2025-39887tracing/osnoise: Fix null-ptr-deref in bitmap_parselist()
CVE-2025-39888fuse: Block access to folio overlimit
CVE-2025-39885ocfs2: fix recursive semaphore deadlock in fiemap call
CVE-2025-39886bpf: Tell memcg to use allow_spinning=false path in bpf_timer_init()
CVE-2025-39883mm/memory-failure: fix VM_BUG_ON_PAGE(PagePoisoned(page)) when unpoison memory
CVE-2025-39884btrfs: fix subvolume deletion lockup caused by inodes xarray race
CVE-2025-39882drm/mediatek: fix potential OF node use-after-free
CVE-2025-39881kernfs: Fix UAF in polling when open file is released
CVE-2025-39878ceph: fix crash after fscrypt_encrypt_pagecache_blocks() error
CVE-2025-39868erofs: fix runtime warning on truncate_folio_batch_exceptionals()
CVE-2025-39877mm/damon/sysfs: fix use-after-free in state_show()
CVE-2025-39876net: fec: Fix possible NPD in fec_enet_phy_reset_after_clk_enable()
CVE-2025-39874macsec: sync features on RTM_NEWLINK
CVE-2025-39875igb: Fix NULL pointer dereference in ethtool loopback test
CVE-2025-39873can: xilinx_can: xcan_write_frame(): fix use-after-free of transmitted SKB
CVE-2025-39872hsr: hold rcu and dev lock for hsr_get_port_ndev
CVE-2025-39871dmaengine: idxd: Remove improper idxd_free
CVE-2025-39869dmaengine: ti: edma: Fix memory allocation size for queue_priority_map
CVE-2025-39870dmaengine: idxd: Fix double free in idxd_setup_wqs()

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-39880

No comments yet

Leave a comment