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

Goal: 1000 CNY · Raised: 1020 CNY

100%
Buy Us a Coffee

CVE-2025-37798— codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog()

EPSS 0.08% · P23

Affected Version Matrix 20

VendorProductVersion RangeStatus
LinuxLinux76e3cc126bb223013a6b9a0e2a51238d1ef2e409< 7a742a9506849d1c1aa71e36c89855ceddc7d58eaffected
76e3cc126bb223013a6b9a0e2a51238d1ef2e409< cc71a757da78dd4aa1b4a9b19cb011833730ccf2affected
76e3cc126bb223013a6b9a0e2a51238d1ef2e409< eda741fe155ddf5ecd2dd3bfbd4fc3c0c7dbb450affected
76e3cc126bb223013a6b9a0e2a51238d1ef2e409< 829c49b6b2ff45b043739168fd1245e4e1a91a30affected
76e3cc126bb223013a6b9a0e2a51238d1ef2e409< 2f9761a94bae33d26e6a81b31b36e7d776d93dc1affected
76e3cc126bb223013a6b9a0e2a51238d1ef2e409< 4d55144b12e742404bb3f8fee6038bafbf45619daffected
76e3cc126bb223013a6b9a0e2a51238d1ef2e409< e73c838c80dccb9e4f19becc11d9f3cb4a27d483affected
76e3cc126bb223013a6b9a0e2a51238d1ef2e409< a57fe60ef4cf96bfbb6b58397ec28bdb5a5c6b31affected
… +12 more rows
Get alerts for future matching vulnerabilitiesLog in to subscribe

I. Basic Information for CVE-2025-37798

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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.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
codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog()
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog() After making all ->qlen_notify() callbacks idempotent, now it is safe to remove the check of qlen!=0 from both fq_codel_dequeue() and codel_qdisc_dequeue().
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codel中删除了不必要的qlen检查。
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 76e3cc126bb223013a6b9a0e2a51238d1ef2e409 ~ 7a742a9506849d1c1aa71e36c89855ceddc7d58e -
LinuxLinux 3.5 -

II. Public POCs for CVE-2025-37798

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2025-37798

请登录查看更多情报信息。
Patch · 6

Same Patch Batch · Linux · 2025-05-02 · 107 CVEs total

CVE-2023-53102ice: xsk: disable txq irq before flushing hw
CVE-2023-53115scsi: mpi3mr: Fix memory leaks in mpi3mr_init_ioc()
CVE-2023-53114i40e: Fix kernel crash during reboot when adapter is in recovery mode
CVE-2023-53112drm/i915/sseu: fix max_subslices array-index-out-of-bounds access
CVE-2023-53113wifi: nl80211: fix NULL-ptr deref in offchan check
CVE-2023-53111loop: Fix use-after-free issues
CVE-2023-53109net: tunnels: annotate lockless accesses to dev->needed_headroom
CVE-2023-53110net/smc: fix NULL sndbuf_desc in smc_cdc_tx_handler()
CVE-2023-53108net/iucv: Fix size of interrupt data
CVE-2023-53106nfc: st-nci: Fix use after free bug in ndlc_remove due to race condition
CVE-2023-53107veth: Fix use after free in XDP_REDIRECT
CVE-2023-53105net/mlx5e: Fix cleanup null-ptr deref on encap lock
CVE-2023-53103bonding: restore bond's IFF_SLAVE flag if a non-eth dev enslave fails
CVE-2023-53101ext4: zero i_disksize when initializing the bootloader inode
CVE-2023-53091ext4: update s_journal_inum if it changes after journal replay
CVE-2023-53094tty: serial: fsl_lpuart: fix race on RX DMA shutdown
CVE-2023-53092interconnect: exynos: fix node leak in probe PM QoS error path
CVE-2023-53093tracing: Do not let histogram values have some modifiers
CVE-2023-53095drm/ttm: Fix a NULL pointer dereference
CVE-2023-53090drm/amdkfd: Fix an illegal memory access

Showing top 20 of 107 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2025-37798

No comments yet

Leave a comment