Memory Leak Affecting kernel-default-livepatch package, versions <5.14.21-150400.24.179.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.03% (7th percentile)

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  • Snyk IDSNYK-SLES154-KERNELDEFAULTLIVEPATCH-13625484
  • published18 Oct 2025
  • disclosed17 Oct 2025

Introduced: 17 Oct 2025

CVE-2023-53349  (opens in a new tab)
CWE-401  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 kernel-default-livepatch to version 5.14.21-150400.24.179.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-default-livepatch package and not the kernel-default-livepatch package as distributed by SLES. See How to fix? for SLES:15.4 relevant fixed versions and status.

In the Linux kernel, the following vulnerability has been resolved:

media: ov2740: Fix memleak in ov2740_init_controls()

There is a kmemleak when testing the media/i2c/ov2740.c with bpf mock device:

unreferenced object 0xffff8881090e19e0 (size 16): comm "51-i2c-ov2740", pid 278, jiffies 4294781584 (age 23.613s) hex dump (first 16 bytes): 00 f3 7c 0b 81 88 ff ff 80 75 6a 09 81 88 ff ff ..|......uj..... backtrace: [<000000004e9fad8f>] __kmalloc_node+0x44/0x1b0 [<0000000039c802f4>] kvmalloc_node+0x34/0x180 [<000000009b8b5c63>] v4l2_ctrl_handler_init_class+0x11d/0x180 [videodev] [<0000000038644056>] ov2740_probe+0x37d/0x84f [ov2740] [<0000000092489f59>] i2c_device_probe+0x28d/0x680 [<000000001038babe>] really_probe+0x17c/0x3f0 [<0000000098c7af1c>] __driver_probe_device+0xe3/0x170 [<00000000e1b3dc24>] device_driver_attach+0x34/0x80 [<000000005a04a34d>] bind_store+0x10b/0x1a0 [<00000000ce25d4f2>] drv_attr_store+0x49/0x70 [<000000007d9f4e9a>] sysfs_kf_write+0x8c/0xb0 [<00000000be6cff0f>] kernfs_fop_write_iter+0x216/0x2e0 [<0000000031ddb40a>] vfs_write+0x658/0x810 [<0000000041beecdd>] ksys_write+0xd6/0x1b0 [<0000000023755840>] do_syscall_64+0x38/0x90 [<00000000b2cc2da2>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

ov2740_init_controls() won't clean all the allocated resources in fail path, which may causes the memleaks. Add v4l2_ctrl_handler_free() to prevent memleak.

CVSS Base Scores

version 3.1