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linux/net/bluetooth
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Luiz Augusto von Dentz 3ef66cbb4e Bluetooth: L2CAP: Fix regressions caused by reusing ident 
commit 761fb8ec87 upstream.

This attempt to fix regressions caused by reusing ident which apparently
is not handled well on certain stacks causing the stack to not respond to
requests, so instead of simple returning the first unallocated id this
stores the last used tx_ident and then attempt to use the next until all
available ids are exausted and then cycle starting over to 1.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=221120
Link: https://bugzilla.kernel.org/show_bug.cgi?id=221177
Fixes: 6c3ea155e5 ("Bluetooth: L2CAP: Fix not tracking outstanding TX ident")
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Tested-by: Christian Eggers <ceggers@arri.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2026-07-24 15:52:02 +02:00
..
bnep Bluetooth: bnep: pin L2CAP connection during netdev registration 2026-07-24 15:51:21 +02:00
cmtp exit: Rename module_put_and_exit to module_put_and_kthread_exit 2024-04-10 16:18:55 +02:00
hidp Bluetooth: Init sk_peer_* on bt_sock_alloc 2026-06-19 13:33:46 +02:00
rfcomm Bluetooth: Consolidate code around sk_alloc into a helper function 2026-06-19 13:33:46 +02:00
6lowpan.c use less confusing names for iov_iter direction initializers 2026-06-19 13:33:46 +02:00
a2mp.c use less confusing names for iov_iter direction initializers 2026-06-19 13:33:46 +02:00
a2mp.h Bluetooth: Replace zero-length array with flexible-array member 2020-02-28 08:30:02 +01:00
af_bluetooth.c Bluetooth: fix UAF in bt_accept_dequeue() 2026-07-24 15:51:21 +02:00
amp.c Bluetooth: amp: Use the correct print format 2021-06-26 07:12:41 +02:00
amp.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284 2019-06-05 17:36:37 +02:00
aosp.c Bluetooth: Add support for reading AOSP vendor capabilities 2021-04-06 14:11:23 -07:00
aosp.h Bluetooth: Add support for reading AOSP vendor capabilities 2021-04-06 14:11:23 -07:00
ecdh_helper.c crypto: ecdh - move curve_id of ECDH from the key to algorithm name 2021-03-13 00:04:03 +11:00
ecdh_helper.h Fix misc new gcc warnings 2021-04-27 17:05:53 -07:00
hci_conn.c Bluetooth: hci_conn: use mod_delayed_work for active mode timeout 2026-03-04 07:20:10 -05:00
hci_core.c Bluetooth: hci_core: Fix use-after-free in vhci_flush() 2026-06-01 17:35:09 +02:00
hci_debugfs.c Bluetooth: Fix TOCTOU in HCI debugfs implementation 2024-04-10 16:19:37 +02:00
hci_debugfs.h Bluetooth: Provide option to enable/disable debugfs information 2015-02-15 18:54:13 +02:00
hci_event.c Bluetooth: hci_event: fix potential UAF in SSP passkey handlers 2026-06-19 13:33:42 +02:00
hci_request.c Bluetooth: Fix memory leak in hci_req_sync_complete() 2024-04-17 11:15:13 +02:00
hci_request.h Bluetooth: Resume advertising after LE connection 2020-11-09 13:33:19 +01:00
hci_sock.c Bluetooth: Consolidate code around sk_alloc into a helper function 2026-06-19 13:33:46 +02:00
hci_sysfs.c Bluetooth: fix memory leak in error path of hci_alloc_dev() 2026-06-19 13:33:34 +02:00
Kconfig Bluetooth: Add support for reading AOSP vendor capabilities 2021-04-06 14:11:23 -07:00
l2cap_core.c Bluetooth: L2CAP: Fix regressions caused by reusing ident 2026-07-24 15:52:02 +02:00
l2cap_sock.c Bluetooth: fix UAF in bt_accept_dequeue() 2026-07-24 15:51:21 +02:00
leds.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
leds.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
lib.c Bluetooth: Introduce debug feature when dynamic debug is disabled 2020-05-11 12:16:27 +02:00
Makefile Bluetooth: Add support for reading AOSP vendor capabilities 2021-04-06 14:11:23 -07:00
mgmt.c Bluetooth: MGMT: Fix backward compatibility with userspace 2026-06-19 13:33:51 +02:00
mgmt_config.c Bluetooth: mgmt: Use the correct print format 2021-06-26 07:12:42 +02:00
mgmt_config.h Bluetooth: mgmt: Add commands for runtime configuration 2020-06-18 13:11:03 +03:00
mgmt_util.c networking: make skb_push & __skb_push return void pointers 2017-06-16 11:48:40 -04:00
mgmt_util.h Bluetooth: Add generic mgmt helper API 2015-03-17 18:03:08 +01:00
msft.c Bluetooth: msft: Use the correct print format 2021-06-26 07:12:42 +02:00
msft.h Bluetooth: Allow Microsoft extension to indicate curve validation 2021-04-08 12:26:34 +02:00
sco.c Bluetooth: SCO: hold sk properly in sco_conn_ready 2026-07-24 15:51:48 +02:00
selftest.c crypto: ecdh - move curve_id of ECDH from the key to algorithm name 2021-03-13 00:04:03 +11:00
selftest.h Bluetooth: Add support for self testing framework 2014-12-30 08:53:55 +02:00
smp.c use less confusing names for iov_iter direction initializers 2026-06-19 13:33:46 +02:00
smp.h Bluetooth: SMP: If an unallowed command is received consider it a failure 2025-08-28 16:24:01 +02:00