CVE-2026-31509
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)
nfc: nci: fix circular locking dependency in nci_close_device
In the Linux kernel, the following vulnerability has been resolved: nfc: nci: fix circular locking dependency in nci_close_device nci_close_device() flushes rx_wq and tx_wq while holding req_lock. This causes a circular locking dependency because nci_rx_work() running on rx_wq can end up taking req_lock too: nci_rx_work -> nci_rx_data_packet -> nci_data_exchange_complete -> __sk_destruct -> rawsock_destruct -> nfc_deactivate_target -> nci_deactivate_target -> nci_request -> mutex_lock(&ndev->req_lock) Move the flush of rx_wq after req_lock has been released. This should safe (I think) because NCI_UP has already been cleared and the transport is closed, so the work will see it and return -ENETDOWN. NIPA has been hitting this running the nci selftest with a debug kernel on roughly 4% of the runs.
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) |
|---|---|---|---|---|---|
| 6a2968aaf50c7a22fced77a5e24aa636281efca8 | affected | git | 7ed00a3edc8597fe2333f524401e2889aa1b5edf | Unavailable | None listed |
| 6a2968aaf50c7a22fced77a5e24aa636281efca8 | affected | git | 5eef9ebec7f5738f12cadede3545c05b34bf5ac3 | Unavailable | None listed |
| 6a2968aaf50c7a22fced77a5e24aa636281efca8 | affected | git | ca54e904a071aa65ef3ad46ba42d51aaac6b73b4 | Unavailable | None listed |
| 6a2968aaf50c7a22fced77a5e24aa636281efca8 | affected | git | eb435d150ca74b4d40f77f1a2266f3636ed64a79 | Unavailable | None listed |
| 6a2968aaf50c7a22fced77a5e24aa636281efca8 | affected | git | 1edc12d2bbcb7a8d0f1088e6fccb9d8c01bb1289 | Unavailable | None listed |
| 6a2968aaf50c7a22fced77a5e24aa636281efca8 | affected | git | d89b74bf08f067b55c03d7f999ba0a0e73177eb3 | Unavailable | None listed |
| 6a2968aaf50c7a22fced77a5e24aa636281efca8 | affected | git | 09143c0e8f3b03517e6233aad42f45c794d8df8e | Unavailable | None listed |
| 6a2968aaf50c7a22fced77a5e24aa636281efca8 | affected | git | 4527025d440ce84bf56e75ce1df2e84cb8178616 | 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) |
|---|---|---|---|---|---|
| 3.2 | affected | Unavailable | Unavailable | Unavailable | None listed |
| 0 | unaffected | semver | 3.2 | Unavailable | None listed |
| 5.10.253 | unaffected | semver | Unavailable | 5.10.* | None listed |
| 5.15.203 | unaffected | semver | Unavailable | 5.15.* | None listed |
| 6.1.168 | unaffected | semver | Unavailable | 6.1.* | None listed |
| 6.6.131 | unaffected | semver | Unavailable | 6.6.* | None listed |
| 6.12.80 | unaffected | semver | Unavailable | 6.12.* | None listed |
| 6.18.21 | unaffected | semver | Unavailable | 6.18.* | None listed |
| 6.19.11 | unaffected | semver | Unavailable | 6.19.* | None listed |
| 7.0 | unaffected | original_commit_for_fix | Unavailable | * | None listed |