CVE-2026-46267
7.8 HIGHIn the Linux kernel, the following vulnerability has been resolved: nfc: hci: shdlc: Stop timers and work before freeing context llc_sh...
Published: 2026-06-03 · Last updated: 2026-06-09
Severity and scoring
- CVSS
- 7.8 HIGH
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CWE
- CWE-416
Affected products
| Vendor | Product |
|---|---|
| linux | linux_kernel |
Description
In the Linux kernel, the following vulnerability has been resolved: nfc: hci: shdlc: Stop timers and work before freeing context llc_shdlc_deinit() purges SHDLC skb queues and frees the llc_shdlc structure while its timers and state machine work may still be active. Timer callbacks can schedule sm_work, and sm_work accesses SHDLC state and the skb queues. If teardown happens in parallel with a queued/running work item, it can lead to UAF and other shutdown races. Stop all SHDLC timers and cancel sm_work synchronously before purging the queues and freeing the context. Found by Linux Verification Center (linuxtesting.org) with SVACE.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2026-46267
- [Patch]https://git.kernel.org/stable/c/1cb97b1225450af3f7b728777929ba50c6a58ced
- [Patch]https://git.kernel.org/stable/c/276820278e9717cc7d4bb32381892dd3ddf418d4
- [Patch]https://git.kernel.org/stable/c/77eef9f2eef045c3c37a3df82d3e661afb866b98
- [Patch]https://git.kernel.org/stable/c/a24a676329d40481b2331bfa1418a679577dfd3a
- [Patch]https://git.kernel.org/stable/c/c60f41022eaad2a1dafecd3ae6f249a3bd6d4b6e
- [Patch]https://git.kernel.org/stable/c/c9efde1e537baed7648a94022b43836a348a074f
- [Patch]https://git.kernel.org/stable/c/cf70cedce327833296ebe6043364d1e44b76a2ab
Related CVEs
Same vendor
- CVE-2026-46273 — In the Linux kernel, the following vulnerability has been resolved: ibmveth: Disable GSO for packets with small MSS Some physical adapt... (8.6 HIGH)
- CVE-2026-46272 — In the Linux kernel, the following vulnerability has been resolved: coresight: tmc-etr: Fix race condition between sysfs and perf mode ... (4.7 MEDIUM)
- CVE-2026-46271 — In the Linux kernel, the following vulnerability has been resolved: wifi: ath12k: do WoW offloads only on primary link In case of multi... (7.8 HIGH)
- CVE-2026-46270 — In the Linux kernel, the following vulnerability has been resolved: power: supply: rt9455: Fix use-after-free in power_supply_changed() ... (8.4 HIGH)
- CVE-2026-46269 — In the Linux kernel, the following vulnerability has been resolved: pinctrl: canaan: k230: Fix NULL pointer dereference when parsing dev... (5.5 MEDIUM)
Same CWE
- CVE-2026-12035 — Use after free in Views in Google Chrome on Windows prior to 149.0.7827.115 allowed a remote attacker to potentially exploit heap corrupt...
- CVE-2026-12029 — Use after free in Video in Google Chrome on Windows prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderer pr... (8.3 HIGH)
- CVE-2026-12028 — Use after free in GPU in Google Chrome on Android prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderer proc... (8.3 HIGH)
- CVE-2026-12023 — Use after free in GPU in Google Chrome on Mac prior to 149.0.7827.115 allowed a remote attacker who had compromised the renderer process ... (8.3 HIGH)
- CVE-2026-12020 — Use after free in Autofill in Google Chrome on Mac prior to 149.0.7827.115 allowed a remote attacker to potentially exploit heap corrupti... (8.8 HIGH)