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Memory Leak Affecting kernel-source package, versions <5.14.21-150400.24.184.1

Severity

 Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.01% (2nd percentile)

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  • Snyk IDSNYK-SLES154-KERNELSOURCE-14044196
  • published18 Nov 2025
  • disclosed15 Nov 2025
Report a new vulnerability Found a mistake?

Introduced: 15 Nov 2025

CVE-2023-53637  (opens in a new tab)
CWE-401  (opens in a new tab)

How to fix?

Upgrade SLES:15.4 kernel-source to version 5.14.21-150400.24.184.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream kernel-source package and not the kernel-source 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: i2c: ov772x: Fix memleak in ov772x_probe()

A memory leak was reported when testing ov772x with bpf mock device:

AssertionError: unreferenced object 0xffff888109afa7a8 (size 8): comm "python3", pid 279, jiffies 4294805921 (age 20.681s) hex dump (first 8 bytes): 80 22 88 15 81 88 ff ff ."...... backtrace: [<000000009990b438>] __kmalloc_node+0x44/0x1b0 [<000000009e32f7d7>] kvmalloc_node+0x34/0x180 [<00000000faf48134>] v4l2_ctrl_handler_init_class+0x11d/0x180 [videodev] [<00000000da376937>] ov772x_probe+0x1c3/0x68c [ov772x] [<000000003f0d225e>] i2c_device_probe+0x28d/0x680 [<00000000e0b6db89>] really_probe+0x17c/0x3f0 [<000000001b19fcee>] __driver_probe_device+0xe3/0x170 [<0000000048370519>] driver_probe_device+0x49/0x120 [<000000005ead07a0>] __device_attach_driver+0xf7/0x150 [<0000000043f452b8>] bus_for_each_drv+0x114/0x180 [<00000000358e5596>] __device_attach+0x1e5/0x2d0 [<0000000043f83c5d>] bus_probe_device+0x126/0x140 [<00000000ee0f3046>] device_add+0x810/0x1130 [<00000000e0278184>] i2c_new_client_device+0x359/0x4f0 [<0000000070baf34f>] of_i2c_register_device+0xf1/0x110 [<00000000a9f2159d>] of_i2c_notify+0x100/0x160 unreferenced object 0xffff888119825c00 (size 256): comm "python3", pid 279, jiffies 4294805921 (age 20.681s) hex dump (first 32 bytes): 00 b4 a5 17 81 88 ff ff 00 5e 82 19 81 88 ff ff .........^...... 10 5c 82 19 81 88 ff ff 10 5c 82 19 81 88 ff ff .............. backtrace: [<000000009990b438>] __kmalloc_node+0x44/0x1b0 [<000000009e32f7d7>] kvmalloc_node+0x34/0x180 [<0000000073d88e0b>] v4l2_ctrl_new.cold+0x19b/0x86f [videodev] [<00000000b1f576fb>] v4l2_ctrl_new_std+0x16f/0x210 [videodev] [<00000000caf7ac99>] ov772x_probe+0x1fa/0x68c [ov772x] [<000000003f0d225e>] i2c_device_probe+0x28d/0x680 [<00000000e0b6db89>] really_probe+0x17c/0x3f0 [<000000001b19fcee>] __driver_probe_device+0xe3/0x170 [<0000000048370519>] driver_probe_device+0x49/0x120 [<000000005ead07a0>] __device_attach_driver+0xf7/0x150 [<0000000043f452b8>] bus_for_each_drv+0x114/0x180 [<00000000358e5596>] __device_attach+0x1e5/0x2d0 [<0000000043f83c5d>] bus_probe_device+0x126/0x140 [<00000000ee0f3046>] device_add+0x810/0x1130 [<00000000e0278184>] i2c_new_client_device+0x359/0x4f0 [<0000000070baf34f>] of_i2c_register_device+0xf1/0x110

The reason is that if priv->hdl.error is set, ov772x_probe() jumps to the error_mutex_destroy without doing v4l2_ctrl_handler_free(), and all resources allocated in v4l2_ctrl_handler_init() and v4l2_ctrl_new_std() are leaked.

CVSS Base Scores

version 3.1