diff options
| author | Ian Ray <ian.ray@gehealthcare.com> | 2026-03-02 18:32:37 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-03-04 17:48:12 -0800 |
| commit | f7d92f11bd33a6eb49c7c812255ef4ab13681f0f (patch) | |
| tree | 9037ffa835b759071372893133cb52d56a087b3e /include/linux/i2c/git@git.tavy.me:linux.git | |
| parent | 165573e41f2f66ef98940cf65f838b2cb575d9d1 (diff) | |
net: nfc: nci: Fix zero-length proprietary notifications
NCI NFC controllers may have proprietary OIDs with zero-length payload.
One example is: drivers/nfc/nxp-nci/core.c, NXP_NCI_RF_TXLDO_ERROR_NTF.
Allow a zero length payload in proprietary notifications *only*.
Before:
-- >8 --
kernel: nci: nci_recv_frame: len 3
-- >8 --
After:
-- >8 --
kernel: nci: nci_recv_frame: len 3
kernel: nci: nci_ntf_packet: NCI RX: MT=ntf, PBF=0, GID=0x1, OID=0x23, plen=0
kernel: nci: nci_ntf_packet: unknown ntf opcode 0x123
kernel: nfc nfc0: NFC: RF transmitter couldn't start. Bad power and/or configuration?
-- >8 --
After fixing the hardware:
-- >8 --
kernel: nci: nci_recv_frame: len 27
kernel: nci: nci_ntf_packet: NCI RX: MT=ntf, PBF=0, GID=0x1, OID=0x5, plen=24
kernel: nci: nci_rf_intf_activated_ntf_packet: rf_discovery_id 1
-- >8 --
Fixes: d24b03535e5e ("nfc: nci: Fix uninit-value in nci_dev_up and nci_ntf_packet")
Signed-off-by: Ian Ray <ian.ray@gehealthcare.com>
Link: https://patch.msgid.link/20260302163238.140576-1-ian.ray@gehealthcare.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/linux/i2c/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions