CVE-2022-50378
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-50378
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50378.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-50378
- Downstream
- Related
- Published
- 2025-09-18T13:33:00Z
- Modified
- 2025-10-16T09:25:56.305178Z
- Summary
- drm/meson: reorder driver deinit sequence to fix use-after-free bug
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
drm/meson: reorder driver deinit sequence to fix use-after-free bug
Unloading the driver triggers the following KASAN warning:
[ +0.006275] ============================================================= [ +0.000029] BUG: KASAN: use-after-free in _listdelentryvalid+0xe0/0x1a0 [ +0.000026] Read of size 8 at addr ffff000020c395e0 by task rmmod/2695
[ +0.000019] CPU: 5 PID: 2695 Comm: rmmod Tainted: G C O 5.19.0-rc6-lrmbkasan+ #1 [ +0.000013] Hardware name: Hardkernel ODROID-N2Plus (DT) [ +0.000008] Call trace: [ +0.000007] dumpbacktrace+0x1ec/0x280 [ +0.000013] showstack+0x24/0x80 [ +0.000008] dumpstacklvl+0x98/0xd4 [ +0.000011] printaddressdescription.constprop.0+0x80/0x520 [ +0.000011] printreport+0x128/0x260 [ +0.000007] kasanreport+0xb8/0xfc [ +0.000008] _asanreportload8noabort+0x3c/0x50 [ +0.000010] _listdelentryvalid+0xe0/0x1a0 [ +0.000009] drmatomicprivateobjfini+0x30/0x200 [drm] [ +0.000172] drmbridgedetach+0x94/0x260 [drm] [ +0.000145] drmencodercleanup+0xa4/0x290 [drm] [ +0.000144] drmmodeconfigcleanup+0x118/0x740 [drm] [ +0.000143] drmmodeconfiginitrelease+0x1c/0x2c [drm] [ +0.000144] drmmanagedrelease+0x170/0x414 [drm] [ +0.000142] drmdevput.part.0+0xc0/0x124 [drm] [ +0.000143] drmdevput+0x20/0x30 [drm] [ +0.000142] mesondrvunbind+0x1d8/0x2ac [mesondrm] [ +0.000028] takedownaggregatedevice+0xb0/0x160 [ +0.000016] componentdel+0x18c/0x360 [ +0.000009] mesondwhdmiremove+0x28/0x40 [mesondwhdmi] [ +0.000015] platformremove+0x64/0xb0 [ +0.000009] deviceremove+0xb8/0x154 [ +0.000009] devicereleasedriverinternal+0x398/0x5b0 [ +0.000009] driverdetach+0xac/0x1b0 [ +0.000009] busremovedriver+0x158/0x29c [ +0.000009] driverunregister+0x70/0xb0 [ +0.000008] platformdriverunregister+0x20/0x2c [ +0.000008] mesondwhdmiplatformdriverexit+0x1c/0x30 [mesondwhdmi] [ +0.000012] _dosysdeletemodule+0x288/0x400 [ +0.000011] _arm64sysdeletemodule+0x5c/0x80 [ +0.000009] invokesyscall+0x74/0x260 [ +0.000009] el0svccommon.constprop.0+0xcc/0x260 [ +0.000009] doel0svc+0x50/0x70 [ +0.000007] el0svc+0x68/0x1a0 [ +0.000012] el0t64synchandler+0x11c/0x150 [ +0.000008] el0t64sync+0x18c/0x190
[ +0.000018] Allocated by task 0: [ +0.000007] (stack is not available)
[ +0.000011] Freed by task 2695: [ +0.000008] kasansavestack+0x2c/0x5c [ +0.000011] kasansettrack+0x2c/0x40 [ +0.000008] kasansetfreeinfo+0x28/0x50 [ +0.000009] __kasanslabfree+0x128/0x1d4 [ +0.000008] _kasanslabfree+0x18/0x24 [ +0.000007] slabfreefreelisthook+0x108/0x230 [ +0.000011] kfree+0x110/0x35c [ +0.000008] releasenodes+0xf0/0x16c [ +0.000009] devresreleasegroup+0x180/0x270 [ +0.000008] componentunbind+0x128/0x1e0 [ +0.000010] componentunbindall+0x1b8/0x264 [ +0.000009] mesondrvunbind+0x1a0/0x2ac [mesondrm] [ +0.000025] takedownaggregatedevice+0xb0/0x160 [ +0.000009] componentdel+0x18c/0x360 [ +0.000009] mesondwhdmiremove+0x28/0x40 [mesondwhdmi] [ +0.000012] platformremove+0x64/0xb0 [ +0.000008] deviceremove+0xb8/0x154 [ +0.000009] devicereleasedriverinternal+0x398/0x5b0 [ +0.000009] driverdetach+0xac/0x1b0 [ +0.000009] busremovedriver+0x158/0x29c [ +0.000008] driverunregister+0x70/0xb0 [ +0.000008] platformdriverunregister+0x20/0x2c [ +0.000008] mesondwhdmiplatformdriverexit+0x1c/0x30 [mesondwhdmi] [ +0.000011] _dosysdeletemodule+0x288/0x400 [ +0.000010] _arm64sysdeletemodule+0x5c/0x80 [ +0.000008] invokesyscall+0x74/0x260 [ +0.000008] el0svccommon.constprop.0+0xcc/0x260 [ +0.000008] doel0svc+0x50/0x70 [ +0.000007] el0svc+0x68/0x1a0 [ +0.000009] el0t64synchandler+0x11c/0x150 [ +0.000009] el0t64sync+0x18c/0x190
[ +0.000014] The buggy address belongs to the object at ffff000020c39000 ---truncated---
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/31c519981eb141c7ec39bfd5be25d35f02edb868
- https://git.kernel.org/stable/c/9190d287f7a6b02b50b510045b0edf448ed68e88
- https://git.kernel.org/stable/c/9d33348513c36337f91f1991da23f41514d4de39
- https://git.kernel.org/stable/c/d76ff04a72f90767455059c8239b06042cd0ed23
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedbbbe775ec5b5dace43a35886da9924837da09dddFixedd76ff04a72f90767455059c8239b06042cd0ed23
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedbbbe775ec5b5dace43a35886da9924837da09dddFixed9190d287f7a6b02b50b510045b0edf448ed68e88
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedbbbe775ec5b5dace43a35886da9924837da09dddFixed9d33348513c36337f91f1991da23f41514d4de39
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedbbbe775ec5b5dace43a35886da9924837da09dddFixed31c519981eb141c7ec39bfd5be25d35f02edb868