| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-26959: Bluetooth: btnxpuart: Fix btnxpuart_close |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| Bluetooth: btnxpuart: Fix btnxpuart_close |
| |
| Fix scheduling while atomic BUG in btnxpuart_close(), properly |
| purge the transmit queue and free the receive skb. |
| |
| [ 10.973809] BUG: scheduling while atomic: kworker/u9:0/80/0x00000002 |
| ... |
| [ 10.980740] CPU: 3 PID: 80 Comm: kworker/u9:0 Not tainted 6.8.0-rc7-0.0.0-devel-00005-g61fdfceacf09 #1 |
| [ 10.980751] Hardware name: Toradex Verdin AM62 WB on Dahlia Board (DT) |
| [ 10.980760] Workqueue: hci0 hci_power_off [bluetooth] |
| [ 10.981169] Call trace: |
| ... |
| [ 10.981363] uart_update_mctrl+0x58/0x78 |
| [ 10.981373] uart_dtr_rts+0x104/0x114 |
| [ 10.981381] tty_port_shutdown+0xd4/0xdc |
| [ 10.981396] tty_port_close+0x40/0xbc |
| [ 10.981407] uart_close+0x34/0x9c |
| [ 10.981414] ttyport_close+0x50/0x94 |
| [ 10.981430] serdev_device_close+0x40/0x50 |
| [ 10.981442] btnxpuart_close+0x24/0x98 [btnxpuart] |
| [ 10.981469] hci_dev_close_sync+0x2d8/0x718 [bluetooth] |
| [ 10.981728] hci_dev_do_close+0x2c/0x70 [bluetooth] |
| [ 10.981862] hci_power_off+0x20/0x64 [bluetooth] |
| |
| The Linux kernel CVE team has assigned CVE-2024-26959 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.4 with commit 689ca16e523278470c38832a3010645a78c544d8 and fixed in 6.6.24 with commit d4e2365b07f1ae1f811a915b514caef5b2d6581e |
| Issue introduced in 6.4 with commit 689ca16e523278470c38832a3010645a78c544d8 and fixed in 6.7.12 with commit 586e099c93fe26b7bd40593979532f507ed9f6a4 |
| Issue introduced in 6.4 with commit 689ca16e523278470c38832a3010645a78c544d8 and fixed in 6.8.3 with commit 74bcf708775c405f7fb6ed776ccd3e1957f38a52 |
| Issue introduced in 6.4 with commit 689ca16e523278470c38832a3010645a78c544d8 and fixed in 6.9 with commit 664130c0b0309b360bc5bdd40a30604a9387bde8 |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2024-26959 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| drivers/bluetooth/btnxpuart.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/d4e2365b07f1ae1f811a915b514caef5b2d6581e |
| https://git.kernel.org/stable/c/586e099c93fe26b7bd40593979532f507ed9f6a4 |
| https://git.kernel.org/stable/c/74bcf708775c405f7fb6ed776ccd3e1957f38a52 |
| https://git.kernel.org/stable/c/664130c0b0309b360bc5bdd40a30604a9387bde8 |
