CVE-2024-26861 (GCVE-0-2024-26861)
Vulnerability from cvelistv5 – Published: 2024-04-17 10:27 – Updated: 2026-05-23 15:39
VLAI
EPSS
VEX
Title
wireguard: receive: annotate data-race around receiving_counter.counter
Summary
In the Linux kernel, the following vulnerability has been resolved:
wireguard: receive: annotate data-race around receiving_counter.counter
Syzkaller with KCSAN identified a data-race issue when accessing
keypair->receiving_counter.counter. Use READ_ONCE() and WRITE_ONCE()
annotations to mark the data race as intentional.
BUG: KCSAN: data-race in wg_packet_decrypt_worker / wg_packet_rx_poll
write to 0xffff888107765888 of 8 bytes by interrupt on cpu 0:
counter_validate drivers/net/wireguard/receive.c:321 [inline]
wg_packet_rx_poll+0x3ac/0xf00 drivers/net/wireguard/receive.c:461
__napi_poll+0x60/0x3b0 net/core/dev.c:6536
napi_poll net/core/dev.c:6605 [inline]
net_rx_action+0x32b/0x750 net/core/dev.c:6738
__do_softirq+0xc4/0x279 kernel/softirq.c:553
do_softirq+0x5e/0x90 kernel/softirq.c:454
__local_bh_enable_ip+0x64/0x70 kernel/softirq.c:381
__raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]
_raw_spin_unlock_bh+0x36/0x40 kernel/locking/spinlock.c:210
spin_unlock_bh include/linux/spinlock.h:396 [inline]
ptr_ring_consume_bh include/linux/ptr_ring.h:367 [inline]
wg_packet_decrypt_worker+0x6c5/0x700 drivers/net/wireguard/receive.c:499
process_one_work kernel/workqueue.c:2633 [inline]
...
read to 0xffff888107765888 of 8 bytes by task 3196 on cpu 1:
decrypt_packet drivers/net/wireguard/receive.c:252 [inline]
wg_packet_decrypt_worker+0x220/0x700 drivers/net/wireguard/receive.c:501
process_one_work kernel/workqueue.c:2633 [inline]
process_scheduled_works+0x5b8/0xa30 kernel/workqueue.c:2706
worker_thread+0x525/0x730 kernel/workqueue.c:2787
...
Severity
No CVSS data available.
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 15:48 UTC
Assigner
References
9 references
Impacted products
3 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
a9e90d9931f3a474f04bab782ccd9d77904941e9 , < f87884e0dffd61b47e58bc6e1e2f6843c212b0cc
(git)
Affected: a9e90d9931f3a474f04bab782ccd9d77904941e9 , < d691be84ab898cf136a35176eaf2f8fc116563f0 (git) Affected: a9e90d9931f3a474f04bab782ccd9d77904941e9 , < 45a83b220c83e3c326513269afbf69ae6fc65cce (git) Affected: a9e90d9931f3a474f04bab782ccd9d77904941e9 , < 78739d72f16b2d7d549f713f1dfebd678d32484b (git) Affected: a9e90d9931f3a474f04bab782ccd9d77904941e9 , < 3f94da807fe1668b9830f0eefbbf7e887b0a7bc6 (git) Affected: a9e90d9931f3a474f04bab782ccd9d77904941e9 , < fdf16de078a97bf14bb8ee2b8d47cc3d3ead09ed (git) Affected: a9e90d9931f3a474f04bab782ccd9d77904941e9 , < bba045dc4d996d03dce6fe45726e78a1a1f6d4c3 (git) Affected: 4a7939808afdc57ecaeb72d049e2985321a1e44e (git) Affected: 5.6.16 , < 5.7 (semver) |
guessed | |
| Linux | Linux |
Affected:
5.7
Unaffected: 0 , < 5.7 (semver) Unaffected: 5.10.214 , ≤ 5.10.* (semver) Unaffected: 5.15.153 , ≤ 5.15.* (semver) Unaffected: 6.1.83 , ≤ 6.1.* (semver) Unaffected: 6.6.23 , ≤ 6.6.* (semver) Unaffected: 6.7.11 , ≤ 6.7.* (semver) Unaffected: 6.8.2 , ≤ 6.8.* (semver) Unaffected: 6.9 , ≤ * (original_commit_for_fix) |
guessed | |
| Siemens | SIMATIC S7-1500 TM MFP - GNU/Linux subsystem |
Affected:
0 , < *
(custom)
|
guessed |
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{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwireguard: receive: annotate data-race around receiving_counter.counter\n\nSyzkaller with KCSAN identified a data-race issue when accessing\nkeypair-\u003ereceiving_counter.counter. Use READ_ONCE() and WRITE_ONCE()\nannotations to mark the data race as intentional.\n\n BUG: KCSAN: data-race in wg_packet_decrypt_worker / wg_packet_rx_poll\n\n write to 0xffff888107765888 of 8 bytes by interrupt on cpu 0:\n counter_validate drivers/net/wireguard/receive.c:321 [inline]\n wg_packet_rx_poll+0x3ac/0xf00 drivers/net/wireguard/receive.c:461\n __napi_poll+0x60/0x3b0 net/core/dev.c:6536\n napi_poll net/core/dev.c:6605 [inline]\n net_rx_action+0x32b/0x750 net/core/dev.c:6738\n __do_softirq+0xc4/0x279 kernel/softirq.c:553\n do_softirq+0x5e/0x90 kernel/softirq.c:454\n __local_bh_enable_ip+0x64/0x70 kernel/softirq.c:381\n __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]\n _raw_spin_unlock_bh+0x36/0x40 kernel/locking/spinlock.c:210\n spin_unlock_bh include/linux/spinlock.h:396 [inline]\n ptr_ring_consume_bh include/linux/ptr_ring.h:367 [inline]\n wg_packet_decrypt_worker+0x6c5/0x700 drivers/net/wireguard/receive.c:499\n process_one_work kernel/workqueue.c:2633 [inline]\n ...\n\n read to 0xffff888107765888 of 8 bytes by task 3196 on cpu 1:\n decrypt_packet drivers/net/wireguard/receive.c:252 [inline]\n wg_packet_decrypt_worker+0x220/0x700 drivers/net/wireguard/receive.c:501\n process_one_work kernel/workqueue.c:2633 [inline]\n process_scheduled_works+0x5b8/0xa30 kernel/workqueue.c:2706\n worker_thread+0x525/0x730 kernel/workqueue.c:2787\n ..."
},
{
"lang": "es",
"value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: wireguard: recibir: anotar carrera de datos alrededor de recibir_counter.counter Syzkaller con KCSAN identific\u00f3 un problema de carrera de datos al acceder al par de claves-\u0026gt;receiving_counter.counter. Utilice las anotaciones READ_ONCE() y WRITE_ONCE() para marcar la carrera de datos como intencional. ERROR: KCSAN: carrera de datos en wg_packet_decrypt_worker/wg_packet_rx_poll escribir en 0xffff888107765888 de 8 bytes por interrupci\u00f3n en la CPU 0: counter_validate drivers/net/wireguard/receive.c:321 [en l\u00ednea] wg_packet_rx_poll+0x3ac/0xf00 .c:461 __napi_poll+0x60/0x3b0 net/core/dev.c:6536 napi_poll net/core/dev.c:6605 [en l\u00ednea] net_rx_action+0x32b/0x750 net/core/dev.c:6738 __do_softirq+0xc4/0x279 kernel/softirq.c:553 do_softirq+0x5e/0x90 kernel/softirq.c:454 __local_bh_enable_ip+0x64/0x70 kernel/softirq.c:381 __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [en l\u00ednea] _raw_spin_unlock_bh+0x36/0x 40 granos /locking/spinlock.c:210 spin_unlock_bh include/linux/spinlock.h:396 [en l\u00ednea] ptr_ring_consume_bh include/linux/ptr_ring.h:367 [en l\u00ednea] wg_packet_decrypt_worker+0x6c5/0x700 drivers/net/wireguard/receive.c:499 Process_one_work kernel/workqueue.c:2633 [en l\u00ednea] ... le\u00eddo en 0xffff888107765888 de 8 bytes por tarea 3196 en la CPU 1: decrypt_packet drivers/net/wireguard/receive.c:252 [en l\u00ednea] wg_packet_decrypt_worker+0x220/0x700 drivers/net /wireguard/receive.c:501 Process_one_work kernel/workqueue.c:2633 [en l\u00ednea] Process_scheduled_works+0x5b8/0xa30 kernel/workqueue.c:2706 Workers_thread+0x525/0x730 kernel/workqueue.c:2787 ..."
}
],
"id": "CVE-2024-26861",
"lastModified": "2024-11-21T09:03:14.277",
"published": "2024-04-17T11:15:08.997",
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"version": "a9e90d9931f3a474f04bab782ccd9d77904941e9",
"versionType": "git"
},
{
"lessThan": "d691be84ab898cf136a35176eaf2f8fc116563f0",
"status": "affected",
"version": "a9e90d9931f3a474f04bab782ccd9d77904941e9",
"versionType": "git"
},
{
"lessThan": "45a83b220c83e3c326513269afbf69ae6fc65cce",
"status": "affected",
"version": "a9e90d9931f3a474f04bab782ccd9d77904941e9",
"versionType": "git"
},
{
"lessThan": "78739d72f16b2d7d549f713f1dfebd678d32484b",
"status": "affected",
"version": "a9e90d9931f3a474f04bab782ccd9d77904941e9",
"versionType": "git"
},
{
"lessThan": "3f94da807fe1668b9830f0eefbbf7e887b0a7bc6",
"status": "affected",
"version": "a9e90d9931f3a474f04bab782ccd9d77904941e9",
"versionType": "git"
},
{
"lessThan": "fdf16de078a97bf14bb8ee2b8d47cc3d3ead09ed",
"status": "affected",
"version": "a9e90d9931f3a474f04bab782ccd9d77904941e9",
"versionType": "git"
},
{
"lessThan": "bba045dc4d996d03dce6fe45726e78a1a1f6d4c3",
"status": "affected",
"version": "a9e90d9931f3a474f04bab782ccd9d77904941e9",
"versionType": "git"
},
{
"status": "affected",
"version": "4a7939808afdc57ecaeb72d049e2985321a1e44e",
"versionType": "git"
},
{
"lessThan": "5.7",
"status": "affected",
"version": "5.6.16",
"versionType": "semver"
}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/wireguard/receive.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "5.7"
},
{
"lessThan": "5.7",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.214",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.153",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.83",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.23",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.7.*",
"status": "unaffected",
"version": "6.7.11",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.8.*",
"status": "unaffected",
"version": "6.8.2",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "6.9",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.214",
"versionStartIncluding": "5.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.153",
"versionStartIncluding": "5.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.83",
"versionStartIncluding": "5.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.23",
"versionStartIncluding": "5.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.7.11",
"versionStartIncluding": "5.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.8.2",
"versionStartIncluding": "5.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.9",
"versionStartIncluding": "5.7",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "5.6.16",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwireguard: receive: annotate data-race around receiving_counter.counter\n\nSyzkaller with KCSAN identified a data-race issue when accessing\nkeypair-\u003ereceiving_counter.counter. Use READ_ONCE() and WRITE_ONCE()\nannotations to mark the data race as intentional.\n\n BUG: KCSAN: data-race in wg_packet_decrypt_worker / wg_packet_rx_poll\n\n write to 0xffff888107765888 of 8 bytes by interrupt on cpu 0:\n counter_validate drivers/net/wireguard/receive.c:321 [inline]\n wg_packet_rx_poll+0x3ac/0xf00 drivers/net/wireguard/receive.c:461\n __napi_poll+0x60/0x3b0 net/core/dev.c:6536\n napi_poll net/core/dev.c:6605 [inline]\n net_rx_action+0x32b/0x750 net/core/dev.c:6738\n __do_softirq+0xc4/0x279 kernel/softirq.c:553\n do_softirq+0x5e/0x90 kernel/softirq.c:454\n __local_bh_enable_ip+0x64/0x70 kernel/softirq.c:381\n __raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]\n _raw_spin_unlock_bh+0x36/0x40 kernel/locking/spinlock.c:210\n spin_unlock_bh include/linux/spinlock.h:396 [inline]\n ptr_ring_consume_bh include/linux/ptr_ring.h:367 [inline]\n wg_packet_decrypt_worker+0x6c5/0x700 drivers/net/wireguard/receive.c:499\n process_one_work kernel/workqueue.c:2633 [inline]\n ...\n\n read to 0xffff888107765888 of 8 bytes by task 3196 on cpu 1:\n decrypt_packet drivers/net/wireguard/receive.c:252 [inline]\n wg_packet_decrypt_worker+0x220/0x700 drivers/net/wireguard/receive.c:501\n process_one_work kernel/workqueue.c:2633 [inline]\n process_scheduled_works+0x5b8/0xa30 kernel/workqueue.c:2706\n worker_thread+0x525/0x730 kernel/workqueue.c:2787\n ..."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-23T15:39:12.332Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/f87884e0dffd61b47e58bc6e1e2f6843c212b0cc"
},
{
"url": "https://git.kernel.org/stable/c/d691be84ab898cf136a35176eaf2f8fc116563f0"
},
{
"url": "https://git.kernel.org/stable/c/45a83b220c83e3c326513269afbf69ae6fc65cce"
},
{
"url": "https://git.kernel.org/stable/c/78739d72f16b2d7d549f713f1dfebd678d32484b"
},
{
"url": "https://git.kernel.org/stable/c/3f94da807fe1668b9830f0eefbbf7e887b0a7bc6"
},
{
"url": "https://git.kernel.org/stable/c/fdf16de078a97bf14bb8ee2b8d47cc3d3ead09ed"
},
{
"url": "https://git.kernel.org/stable/c/bba045dc4d996d03dce6fe45726e78a1a1f6d4c3"
}
],
"title": "wireguard: receive: annotate data-race around receiving_counter.counter",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2024-26861",
"datePublished": "2024-04-17T10:27:24.980Z",
"dateReserved": "2024-02-19T14:20:24.184Z",
"dateUpdated": "2026-05-23T15:39:12.332Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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