5.5

CVE-2023-53349

media: ov2740: Fix memleak in ov2740_init_controls()

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 5.8 < 5.10.173
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.99
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.16
Linux ≫ Linux Kernel Version >= 6.2 < 6.2.3
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.18% 0.081
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-401 Missing Release of Memory after Effective Lifetime

The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.

https://git.kernel.org/stable/c/a163ee11345d8322321c28bd61631de32455b987
Patch
https://git.kernel.org/stable/c/3969b2ebc66039306f505c7c630c5530800f83c0
Patch
https://git.kernel.org/stable/c/fc33380ae06f438b652f66b9370b543976ac8a03
Patch
https://git.kernel.org/stable/c/7c405ee63447f14eefcfe12a18aa749abbd596ea
Patch
https://git.kernel.org/stable/c/2d899592ed7829d0d5140853bac4d58742a6b8af
Patch