CVE-2024-43850: soc: qcom: icc-bwmon: Fix refcount imbalance seen during bwmon_remove
First published: Sat Aug 17 2024(Updated: )
In the Linux kernel, the following vulnerability has been resolved: soc: qcom: icc-bwmon: Fix refcount imbalance seen during bwmon_remove The following warning is seen during bwmon_remove due to refcount imbalance, fix this by releasing the OPPs after use. Logs: WARNING: at drivers/opp/core.c:1640 _opp_table_kref_release+0x150/0x158 Hardware name: Qualcomm Technologies, Inc. X1E80100 CRD (DT) ... Call trace: _opp_table_kref_release+0x150/0x158 dev_pm_opp_remove_table+0x100/0x1b4 devm_pm_opp_of_table_release+0x10/0x1c devm_action_release+0x14/0x20 devres_release_all+0xa4/0x104 device_unbind_cleanup+0x18/0x60 device_release_driver_internal+0x1ec/0x228 driver_detach+0x50/0x98 bus_remove_driver+0x6c/0xbc driver_unregister+0x30/0x60 platform_driver_unregister+0x14/0x20 bwmon_driver_exit+0x18/0x524 [icc_bwmon] __arm64_sys_delete_module+0x184/0x264 invoke_syscall+0x48/0x118 el0_svc_common.constprop.0+0xc8/0xe8 do_el0_svc+0x20/0x2c el0_svc+0x34/0xdc el0t_64_sync_handler+0x13c/0x158 el0t_64_sync+0x190/0x194 --[ end trace 0000000000000000 ]---
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >=6.0<6.6.44 | |
| Linux Linux kernel | >=6.7<6.10.3 | |
| debian/linux | <=6.1.115-1<=6.1.119-1 | 5.10.223-1 5.10.226-1 6.11.10-1 6.12.5-1 |
| >=6.0<6.6.44 | ||
| >=6.7<6.10.3 |
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Reference Links
- https://git.kernel.org/stable/c/24086640ab39396eb1a92d1cb1cd2f31b2677c52
- https://git.kernel.org/stable/c/4100d4d019f8e140be1d4d3a9d8d93c1285f5d1c
- https://git.kernel.org/stable/c/aad41f4c169bcb800ae88123799bdf8cdec3d366
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-43850
- https://nvd.nist.gov/vuln/detail/CVE-2024-43850
- https://launchpad.net/bugs/cve/CVE-2024-43850
- https://security-tracker.debian.org/tracker/CVE-2024-43850
- https://ubuntu.com/security/CVE-2024-43850
- https://git.kernel.org/linus/24086640ab39396eb1a92d1cb1cd2f31b2677c52
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