{"id":"DEBIAN-CVE-2022-49841","details":"In the Linux kernel, the following vulnerability has been resolved:  serial: imx: Add missing .thaw_noirq hook  The following warning is seen with non-console UART instance when system hibernates.  [   37.371969] ------------[ cut here ]------------ [   37.376599] uart3_root_clk already disabled [   37.380810] WARNING: CPU: 0 PID: 296 at drivers/clk/clk.c:952 clk_core_disable+0xa4/0xb0 ... [   37.506986] Call trace: [   37.509432]  clk_core_disable+0xa4/0xb0 [   37.513270]  clk_disable+0x34/0x50 [   37.516672]  imx_uart_thaw+0x38/0x5c [   37.520250]  platform_pm_thaw+0x30/0x6c [   37.524089]  dpm_run_callback.constprop.0+0x3c/0xd4 [   37.528972]  device_resume+0x7c/0x160 [   37.532633]  dpm_resume+0xe8/0x230 [   37.536036]  hibernation_snapshot+0x288/0x430 [   37.540397]  hibernate+0x10c/0x2e0 [   37.543798]  state_store+0xc4/0xd0 [   37.547203]  kobj_attr_store+0x1c/0x30 [   37.550953]  sysfs_kf_write+0x48/0x60 [   37.554619]  kernfs_fop_write_iter+0x118/0x1ac [   37.559063]  new_sync_write+0xe8/0x184 [   37.562812]  vfs_write+0x230/0x290 [   37.566214]  ksys_write+0x68/0xf4 [   37.569529]  __arm64_sys_write+0x20/0x2c [   37.573452]  invoke_syscall.constprop.0+0x50/0xf0 [   37.578156]  do_el0_svc+0x11c/0x150 [   37.581648]  el0_svc+0x30/0x140 [   37.584792]  el0t_64_sync_handler+0xe8/0xf0 [   37.588976]  el0t_64_sync+0x1a0/0x1a4 [   37.592639] ---[ end trace 56e22eec54676d75 ]---  On hibernating, pm core calls into related hooks in sequence like:      .freeze     .freeze_noirq     .thaw_noirq     .thaw  With .thaw_noirq hook being absent, the clock will be disabled in a unbalanced call which results the warning above.      imx_uart_freeze()         clk_prepare_enable()     imx_uart_suspend_noirq()         clk_disable()     imx_uart_thaw         clk_disable_unprepare()  Adding the missing .thaw_noirq hook as imx_uart_resume_noirq() will have the call sequence corrected as below and thus fix the warning.      imx_uart_freeze()         clk_prepare_enable()     imx_uart_suspend_noirq()         clk_disable()     imx_uart_resume_noirq()         clk_enable()     imx_uart_thaw         clk_disable_unprepare()","modified":"2026-09-01T20:04:56.570857533Z","published":"2025-05-01T15:16:07.600Z","upstream":["CVE-2022-49841"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2022-49841"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.10-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49841.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.10-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49841.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.10-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-49841.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}