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CVE-2025-38107

Description

In the Linux kernel, the following vulnerability has been resolved:net_sched: ets: fix a race in ets_qdisc_change()Gerrard Tai reported a race condition in ETS, whenever SFQ perturb timerfires at the wrong time.The race is as follows:CPU 0 CPU 1[1]: lock root[2]: qdisc_tree_flush_backlog()[3]: unlock root | | [5]: lock root | [6]: rehash | [7]: qdisc_tree_reduce_backlog() |[4]: qdisc_put()This can be abused to underflow a parents qlen.Calling qdisc_purge_queue() instead of qdisc_tree_flush_backlog()should fix the race, because all packets will be purged from the qdiscbefore releasing the lock.

Risk Information

Base Score
7.0
MODERATE
Vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
Exploitation Probability
0.017

Associated Vulnerability

VulnerabilityOS Platform
linux security update(DSA-5973-1) DSA-5973-1 linux-cpupower_6.1.147-1_i386.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-doc_6.1.147-1_all.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-doc-6.1_6.1.147-1_all.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-image-686-dbg_6.1.147-1_i386.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-image-686-pae-dbg_6.1.147-1_i386.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-cpupower_6.1.147-1_amd64.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-image-amd64-signed-template_6.1.147-1_amd64.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-image-cloud-amd64-dbg_6.1.147-1_amd64.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-image-i386-signed-template_6.1.147-1_i386.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-image-rt-686-pae-dbg_6.1.147-1_i386.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-image-rt-amd64-dbg_6.1.147-1_amd64.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-image-amd64-dbg_6.1.147-1_amd64.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-config-6.1_6.1.147-1_i386.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-config-6.1_6.1.147-1_amd64.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-compiler-gcc-12-x86_6.1.147-1_i386.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-kbuild-6.1_6.1.147-1_amd64.debLinux
linux security update(DSA-5973-1) DSA-5973-1 libcpupower1_6.1.147-1_i386.debLinux
linux security update(DSA-5973-1) DSA-5973-1 libcpupower1_6.1.147-1_amd64.debLinux
linux security update(DSA-5973-1) DSA-5973-1 libcpupower-dev_6.1.147-1_i386.debLinux
linux security update(DSA-5973-1) DSA-5973-1 libcpupower-dev_6.1.147-1_amd64.debLinux
linux security update(DSA-5973-1) DSA-5973-1 hyperv-daemons_6.1.147-1_i386.debLinux
linux security update(DSA-5973-1) DSA-5973-1 hyperv-daemons_6.1.147-1_amd64.debLinux
linux security update(DSA-5973-1) DSA-5973-1 bpftool_7.1.0+6.1.147-1_i386.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-compiler-gcc-12-x86_6.1.147-1_amd64.debLinux
linux security update(DSA-5973-1) DSA-5973-1 usbip_2.0+6.1.147-1_i386.debLinux
linux security update(DSA-5973-1) DSA-5973-1 usbip_2.0+6.1.147-1_amd64.debLinux
linux security update(DSA-5973-1) DSA-5973-1 rtla_6.1.147-1_i386.debLinux
linux security update(DSA-5973-1) DSA-5973-1 rtla_6.1.147-1_amd64.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-source-6.1_6.1.147-1_all.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-source_6.1.147-1_all.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-libc-dev_6.1.147-1_amd64.debLinux
linux security update(DSA-5973-1) DSA-5973-1 bpftool_7.1.0+6.1.147-1_amd64.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-libc-dev_6.1.147-1_i386.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-perf_6.1.147-1_amd64.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-kbuild-6.1_6.1.147-1_i386.debLinux
linux security update(DSA-5973-1) DSA-5973-1 linux-perf_6.1.147-1_i386.debLinux

Patch Details

No records found

References

https://nvd.nist.gov/vuln/detail/CVE-2023-1234
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-1234