Memory Leak Affecting kernel-rt package, versions *
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Test your applications- Snyk ID SNYK-CENTOS7-KERNELRT-7145631
- published 27 May 2024
- disclosed 24 May 2024
Introduced: 24 May 2024
CVE-2021-47499 Open this link in a new tabHow to fix?
There is no fixed version for Centos:7 kernel-rt.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-rt package and not the kernel-rt package as distributed by Centos.
See How to fix? for Centos:7 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
iio: accel: kxcjk-1013: Fix possible memory leak in probe and remove
When ACPI type is ACPI_SMO8500, the data->dready_trig will not be set, the memory allocated by iio_triggered_buffer_setup() will not be freed, and cause memory leak as follows:
unreferenced object 0xffff888009551400 (size 512): comm "i2c-SMO8500-125", pid 911, jiffies 4294911787 (age 83.852s) hex dump (first 32 bytes): 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 20 e2 e5 c0 ff ff ff ff ........ ....... backtrace: [<0000000041ce75ee>] kmem_cache_alloc_trace+0x16d/0x360 [<000000000aeb17b0>] iio_kfifo_allocate+0x41/0x130 [kfifo_buf] [<000000004b40c1f5>] iio_triggered_buffer_setup_ext+0x2c/0x210 [industrialio_triggered_buffer] [<000000004375b15f>] kxcjk1013_probe+0x10c3/0x1d81 [kxcjk_1013]
Fix it by remove data->dready_trig condition in probe and remove.
References
- https://access.redhat.com/security/cve/CVE-2021-47499
- https://git.kernel.org/stable/c/14508fe13b1c578b3d2ba574f1d48b351975860c
- https://git.kernel.org/stable/c/3899700ddacbf7aaafadf44464fff3ff0d4e3307
- https://git.kernel.org/stable/c/60a55b9d91ba99eb8cf015bc46dc2de05e168a15
- https://git.kernel.org/stable/c/70c9774e180d151abaab358108e3510a8e615215
- https://git.kernel.org/stable/c/8c163a14277115ca962103910ab4cce55e862ffb
- https://git.kernel.org/stable/c/8c1d43f3a3fc7184c42d7398bdf59a2a2903e4fc
- https://git.kernel.org/stable/c/a3730f74159ad00a28960c0efe2a931fe6fe6b45
- https://git.kernel.org/stable/c/ee86d0bad80bdcd11a87e188a596727f41b62320