CVE-2026-23336
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
wifi: cfg80211: cancel rfkill_block work in wiphy_unregister()
In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: cancel rfkill_block work in wiphy_unregister() There is a use-after-free error in cfg80211_shutdown_all_interfaces found by syzkaller: BUG: KASAN: use-after-free in cfg80211_shutdown_all_interfaces+0x213/0x220 Read of size 8 at addr ffff888112a78d98 by task kworker/0:5/5326 CPU: 0 UID: 0 PID: 5326 Comm: kworker/0:5 Not tainted 6.19.0-rc2 #2 PREEMPT(voluntary) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 Workqueue: events cfg80211_rfkill_block_work Call Trace: <TASK> dump_stack_lvl+0x116/0x1f0 print_report+0xcd/0x630 kasan_report+0xe0/0x110 cfg80211_shutdown_all_interfaces+0x213/0x220 cfg80211_rfkill_block_work+0x1e/0x30 process_one_work+0x9cf/0x1b70 worker_thread+0x6c8/0xf10 kthread+0x3c5/0x780 ret_from_fork+0x56d/0x700 ret_from_fork_asm+0x1a/0x30 </TASK> The problem arises due to the rfkill_block work is not cancelled when wiphy is being unregistered. In order to fix the issue cancel the corresponding work in wiphy_unregister(). Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 1f87f7d3a3b42b20f34cb03f0fd1a41c3d0e27f3 | affected | git | 82a35356b5c1f75fe6a8a561db44e8d0e49da8f9 | Unavailable | None listed |
| 1f87f7d3a3b42b20f34cb03f0fd1a41c3d0e27f3 | affected | git | b2e9626a9d16b9bbbd06498c9e73c93be354dc7a | Unavailable | None listed |
| 1f87f7d3a3b42b20f34cb03f0fd1a41c3d0e27f3 | affected | git | eeea8da43ab86ac0a6b9cec225eec91564346940 | Unavailable | None listed |
| 1f87f7d3a3b42b20f34cb03f0fd1a41c3d0e27f3 | affected | git | fa18639deab4a3662d543200c5bfc29bf4e23173 | Unavailable | None listed |
| 1f87f7d3a3b42b20f34cb03f0fd1a41c3d0e27f3 | affected | git | 57e39fe8da573435fa35975f414f4dc17d9f8449 | Unavailable | None listed |
| 1f87f7d3a3b42b20f34cb03f0fd1a41c3d0e27f3 | affected | git | 584279ad9ff1e8e7c5494b9fce286201f7d1f9e2 | Unavailable | None listed |
| 1f87f7d3a3b42b20f34cb03f0fd1a41c3d0e27f3 | affected | git | cd2f52944c7b95dcdfe0d87f385a2d96458a3ae5 | Unavailable | None listed |
| 1f87f7d3a3b42b20f34cb03f0fd1a41c3d0e27f3 | affected | git | 767d23ade706d5fa51c36168e92a9c5533c351a1 | Unavailable | None listed |
Linux
- Vendor
- Linux
- Product
- Linux
- Platforms
- Unknown
- Default status
affected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2.6.31 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 2.6.31 | Unavailable | None listed |
| 5.10.253 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.203 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.167 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.130 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.77 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.17 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.7 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |