CVE-2025-37798

Summary

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().

Affected Software

VendorProductVersion RangeStatus
LinuxLinux76e3cc126bb223013a6b9a0e2a51238d1ef2e409 < 7a742a9506849d1c1aa71e36c89855ceddc7d58eaffected
LinuxLinux76e3cc126bb223013a6b9a0e2a51238d1ef2e409 < cc71a757da78dd4aa1b4a9b19cb011833730ccf2affected
LinuxLinux76e3cc126bb223013a6b9a0e2a51238d1ef2e409 < eda741fe155ddf5ecd2dd3bfbd4fc3c0c7dbb450affected
LinuxLinux76e3cc126bb223013a6b9a0e2a51238d1ef2e409 < 829c49b6b2ff45b043739168fd1245e4e1a91a30affected
LinuxLinux76e3cc126bb223013a6b9a0e2a51238d1ef2e409 < 2f9761a94bae33d26e6a81b31b36e7d776d93dc1affected
LinuxLinux76e3cc126bb223013a6b9a0e2a51238d1ef2e409 < 4d55144b12e742404bb3f8fee6038bafbf45619daffected
LinuxLinux76e3cc126bb223013a6b9a0e2a51238d1ef2e409 < e73c838c80dccb9e4f19becc11d9f3cb4a27d483affected
LinuxLinux76e3cc126bb223013a6b9a0e2a51238d1ef2e409 < a57fe60ef4cf96bfbb6b58397ec28bdb5a5c6b31affected
LinuxLinux76e3cc126bb223013a6b9a0e2a51238d1ef2e409 < 342debc12183b51773b3345ba267e9263bdfaaefaffected
LinuxLinux3.5affected
LinuxLinux0 < 3.5unaffected
LinuxLinux5.4.297 <= 5.4.*unaffected
LinuxLinux5.10.241 <= 5.10.*unaffected
LinuxLinux5.15.190 <= 5.15.*unaffected
LinuxLinux6.1.135 <= 6.1.*unaffected
LinuxLinux6.6.88 <= 6.6.*unaffected
LinuxLinux6.12.24 <= 6.12.*unaffected
LinuxLinux6.13.12 <= 6.13.*unaffected
LinuxLinux6.14.3 <= 6.14.*unaffected
LinuxLinux6.15 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

References