CVE-2024-26861: debian debian_linux Race Condition
Vulnerability summary
CVE-2024-26861 is a medium (CVSS 4.7) Race Condition vulnerability in debian debian_linux. EPSS estimates a 0.18% chance of exploitation in the next 30 days, higher than 6.8% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 28 · Related 25Timeline
- 17-04-2024PublishedVulnerability first disclosed.
- 15-10-2026Last modifiedVulnerability information updated.
Description
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 ...
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated4.7MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.18%
Chance of exploitation in the next 30 days
Percentile
7%
Versus all other CVEs
30-day change
0.00 pp
From 0.18% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Ubuntu105 products
- linux< 5.15.0-112.122 | < 6.8.0-35.35
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws< 5.15.0-1063.69 | < 6.8.0-1009.9
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
Debian2 products
- linux< 6.1.85-1 | < 6.7.12-1
- debian_linuxEOL10.0
Linux2 products
- linux≥ a9e90d9931f3a474f04bab782ccd9d77904941e9, < f87884e0dffd61b47e58bc6e1e2f6843c212b0cc | ≥ a9e90d9931f3a474f04bab782ccd9d77904941e9, < d691be84ab898cf136a35176eaf2f8fc116563f0 | ≥ a9e90d9931f3a474f04bab782ccd9d77904941e9, < 45a83b220c83e3c326513269afbf69ae6fc65cce | ≥ a9e90d9931f3a474f04bab782ccd9d77904941e9, < 78739d72f16b2d7d549f713f1dfebd678d32484b | ≥ a9e90d9931f3a474f04bab782ccd9d77904941e9, < 3f94da807fe1668b9830f0eefbbf7e887b0a7bc6 | ≥ a9e90d9931f3a474f04bab782ccd9d77904941e9, < fdf16de078a97bf14bb8ee2b8d47cc3d3ead09ed | ≥ a9e90d9931f3a474f04bab782ccd9d77904941e9, < bba045dc4d996d03dce6fe45726e78a1a1f6d4c3 | 4a7939808afdc57ecaeb72d049e2985321a1e44e | ≥ 5.6.16, < 5.7 | 5.7
- linux_kernel≥ 5.7, < 5.10.214 | ≥ 5.11, < 5.15.153 | ≥ 5.16, < 6.1.83 | ≥ 6.2, < 6.6.23 | ≥ 6.7, < 6.7.11 | ≥ 6.8, < 6.8.2
3 vendors · 109 products
