In the Linux kernel, the following vulnerability has been resolved:
drm/tests: hdmi: Fix memory leaks in drm_display_mode_from_cea_vic()
modprobe drm_hdmi_state_helper_test and then rmmod it, the following memory leak occurs.
The `mode` allocated in drm_mode_duplicate() called by drm_display_mode_from_cea_vic() is not freed, which cause the memory leak:
unreferenced object 0xffffff80ccd18100 (size 128): comm "kunit_try_catch", pid 1851, jiffies 4295059695 hex dump (first 32 bytes): 57 62 00 00 80 02 90 02 f0 02 20 03 00 00 e0 01 Wb........ ..... ea 01 ec 01 0d 02 00 00 0a 00 00 00 00 00 00 00 ................ backtrace (crc c2f1aa95): [<000000000f10b11b>] kmemleak_alloc+0x34/0x40 [<000000001cd4cf73>] __kmalloc_cache_noprof+0x26c/0x2f4 [<00000000f1f3cffa>] drm_mode_duplicate+0x44/0x19c [<000000008cbeef13>] drm_display_mode_from_cea_vic+0x88/0x98 [<0000000019daaacf>] 0xffffffedc11ae69c [<000000000aad0f85>] kunit_try_run_case+0x13c/0x3ac [<00000000a9210bac>] kunit_generic_run_threadfn_adapter+0x80/0xec [<000000000a0b2e9e>] kthread+0x2e8/0x374 [<00000000bd668858>] ret_from_fork+0x10/0x20 ......
Free `mode` by using drm_kunit_display_mode_from_cea_vic() to fix it.
CVSS Details
- CVSS 3.1 Base Score: 5.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Debian | — | Upgrade linux | Jul 27, 2026 | Jul 27, 2026 |
| Ubuntu | — | Upgrade linux-image-6.11.0-1010-lowlatencyUpgrade linux-image-6.11.0-1015-oemUpgrade linux-image-6.11.0-18-genericUpgrade linux-image-azureUpgrade linux-image-realtime-hwe-24.04Upgrade linux-image-azure-fdeUpgrade linux-image-oem-24.04aUpgrade linux-image-6.11.0-1009-azureUpgrade linux-image-raspiUpgrade linux-image-6.11.0-18-generic-64kUpgrade linux-image-oracle-64kUpgrade linux-image-6.11.0-1009-awsUpgrade linux-image-6.11.0-1008-raspiUpgrade linux-image-genericUpgrade linux-image-6.11.0-1009-azure-fdeUpgrade linux-image-generic-64kUpgrade linux-image-gcpUpgrade linux-image-generic-hwe-24.04Upgrade linux-image-realtimeUpgrade linux-image-virtual-hwe-24.04Upgrade linux-image-6.11.0-1005-realtimeUpgrade linux-image-virtualUpgrade linux-image-awsUpgrade linux-image-lowlatency-64kUpgrade linux-image-generic-64k-hwe-24.04Upgrade linux-image-oem-24.04Upgrade linux-image-6.11.0-1010-lowlatency-64kUpgrade linux-image-6.11.0-1011-oracleUpgrade linux-image-6.11.0-1009-gcpUpgrade linux-image-oracleUpgrade linux-image-oem-24.04bUpgrade linux-image-6.11.0-1011-oracle-64kUpgrade linux-image-lowlatency | Feb 20, 2025 | Nov 9, 2024 |
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