CVE-2025-68200 (GCVE-0-2025-68200)
Vulnerability from cvelistv5
Published
2025-12-16 13:48
Modified
2025-12-16 13:48
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: Add bpf_prog_run_data_pointers()
syzbot found that cls_bpf_classify() is able to change
tc_skb_cb(skb)->drop_reason triggering a warning in sk_skb_reason_drop().
WARNING: CPU: 0 PID: 5965 at net/core/skbuff.c:1192 __sk_skb_reason_drop net/core/skbuff.c:1189 [inline]
WARNING: CPU: 0 PID: 5965 at net/core/skbuff.c:1192 sk_skb_reason_drop+0x76/0x170 net/core/skbuff.c:1214
struct tc_skb_cb has been added in commit ec624fe740b4 ("net/sched:
Extend qdisc control block with tc control block"), which added a wrong
interaction with db58ba459202 ("bpf: wire in data and data_end for
cls_act_bpf").
drop_reason was added later.
Add bpf_prog_run_data_pointers() helper to save/restore the net_sched
storage colliding with BPF data_meta/data_end.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 0d76daf2013ce1da20eab5e26bd81d983e1c18fb Version: ec624fe740b416fb68d536b37fb8eef46f90b5c2 Version: ec624fe740b416fb68d536b37fb8eef46f90b5c2 Version: ec624fe740b416fb68d536b37fb8eef46f90b5c2 Version: ec624fe740b416fb68d536b37fb8eef46f90b5c2 Version: ec624fe740b416fb68d536b37fb8eef46f90b5c2 |
||
{
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{
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Add bpf_prog_run_data_pointers()\n\nsyzbot found that cls_bpf_classify() is able to change\ntc_skb_cb(skb)-\u003edrop_reason triggering a warning in sk_skb_reason_drop().\n\nWARNING: CPU: 0 PID: 5965 at net/core/skbuff.c:1192 __sk_skb_reason_drop net/core/skbuff.c:1189 [inline]\nWARNING: CPU: 0 PID: 5965 at net/core/skbuff.c:1192 sk_skb_reason_drop+0x76/0x170 net/core/skbuff.c:1214\n\nstruct tc_skb_cb has been added in commit ec624fe740b4 (\"net/sched:\nExtend qdisc control block with tc control block\"), which added a wrong\ninteraction with db58ba459202 (\"bpf: wire in data and data_end for\ncls_act_bpf\").\n\ndrop_reason was added later.\n\nAdd bpf_prog_run_data_pointers() helper to save/restore the net_sched\nstorage colliding with BPF data_meta/data_end."
}
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"dateUpdated": "2025-12-16T13:48:28.793Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"url": "https://git.kernel.org/stable/c/5e149d8a8e732126fb6014efd60075cf63a73f91"
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{
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{
"url": "https://git.kernel.org/stable/c/6392e5f4b1a3cce10e828309baf35d22abd3457d"
},
{
"url": "https://git.kernel.org/stable/c/8dd2fe5f5d586c8e87307b7a271f6b994afcc006"
},
{
"url": "https://git.kernel.org/stable/c/4ef92743625818932b9c320152b58274c05e5053"
}
],
"title": "bpf: Add bpf_prog_run_data_pointers()",
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"cveId": "CVE-2025-68200",
"datePublished": "2025-12-16T13:48:28.793Z",
"dateReserved": "2025-12-16T13:41:40.254Z",
"dateUpdated": "2025-12-16T13:48:28.793Z",
"state": "PUBLISHED"
},
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}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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