| 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-2024-42290: irqchip/imx-irqsteer: Handle runtime power management correctly |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| irqchip/imx-irqsteer: Handle runtime power management correctly |
| |
| The power domain is automatically activated from clk_prepare(). However, on |
| certain platforms like i.MX8QM and i.MX8QXP, the power-on handling invokes |
| sleeping functions, which triggers the 'scheduling while atomic' bug in the |
| context switch path during device probing: |
| |
| BUG: scheduling while atomic: kworker/u13:1/48/0x00000002 |
| Call trace: |
| __schedule_bug+0x54/0x6c |
| __schedule+0x7f0/0xa94 |
| schedule+0x5c/0xc4 |
| schedule_preempt_disabled+0x24/0x40 |
| __mutex_lock.constprop.0+0x2c0/0x540 |
| __mutex_lock_slowpath+0x14/0x20 |
| mutex_lock+0x48/0x54 |
| clk_prepare_lock+0x44/0xa0 |
| clk_prepare+0x20/0x44 |
| imx_irqsteer_resume+0x28/0xe0 |
| pm_generic_runtime_resume+0x2c/0x44 |
| __genpd_runtime_resume+0x30/0x80 |
| genpd_runtime_resume+0xc8/0x2c0 |
| __rpm_callback+0x48/0x1d8 |
| rpm_callback+0x6c/0x78 |
| rpm_resume+0x490/0x6b4 |
| __pm_runtime_resume+0x50/0x94 |
| irq_chip_pm_get+0x2c/0xa0 |
| __irq_do_set_handler+0x178/0x24c |
| irq_set_chained_handler_and_data+0x60/0xa4 |
| mxc_gpio_probe+0x160/0x4b0 |
| |
| Cure this by implementing the irq_bus_lock/sync_unlock() interrupt chip |
| callbacks and handle power management in them as they are invoked from |
| non-atomic context. |
| |
| [ tglx: Rewrote change log, added Fixes tag ] |
| |
| The Linux kernel CVE team has assigned CVE-2024-42290 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.0 with commit 0136afa08967f6e160b9b4e85a7a70e4180a8333 and fixed in 5.4.282 with commit a590e8dea3df2639921f874d763be961dd74e8f9 |
| Issue introduced in 5.0 with commit 0136afa08967f6e160b9b4e85a7a70e4180a8333 and fixed in 5.10.224 with commit 3a2884a44e5cda192df1b28e9925661f79f599a1 |
| Issue introduced in 5.0 with commit 0136afa08967f6e160b9b4e85a7a70e4180a8333 and fixed in 5.15.165 with commit fa1803401e1c360efe6342fb41d161cc51748a11 |
| Issue introduced in 5.0 with commit 0136afa08967f6e160b9b4e85a7a70e4180a8333 and fixed in 6.1.103 with commit 58c56735facb225a5c46fa4b8bbbe7f31d1cb894 |
| Issue introduced in 5.0 with commit 0136afa08967f6e160b9b4e85a7a70e4180a8333 and fixed in 6.6.44 with commit 21bd3f9e7f924cd2fc892a484e7a50c7e1847565 |
| Issue introduced in 5.0 with commit 0136afa08967f6e160b9b4e85a7a70e4180a8333 and fixed in 6.10.3 with commit f8ae38f1dfe652779c7c613facbc257cec00ac44 |
| Issue introduced in 5.0 with commit 0136afa08967f6e160b9b4e85a7a70e4180a8333 and fixed in 6.11 with commit 33b1c47d1fc0b5f06a393bb915db85baacba18ea |
| |
| 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-2024-42290 |
| 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/irqchip/irq-imx-irqsteer.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/a590e8dea3df2639921f874d763be961dd74e8f9 |
| https://git.kernel.org/stable/c/3a2884a44e5cda192df1b28e9925661f79f599a1 |
| https://git.kernel.org/stable/c/fa1803401e1c360efe6342fb41d161cc51748a11 |
| https://git.kernel.org/stable/c/58c56735facb225a5c46fa4b8bbbe7f31d1cb894 |
| https://git.kernel.org/stable/c/21bd3f9e7f924cd2fc892a484e7a50c7e1847565 |
| https://git.kernel.org/stable/c/f8ae38f1dfe652779c7c613facbc257cec00ac44 |
| https://git.kernel.org/stable/c/33b1c47d1fc0b5f06a393bb915db85baacba18ea |
