{"id":"CVE-2023-53349","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-53349","generatedAt":"2026-10-28T00:50:59.588Z","title":"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…","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: ov2740: Fix memleak in ov2740_init_controls()\n\nThere is a kmemleak when testing the media/i2c/ov2740.c with bpf mock\ndevice:\n\nunreferenced object 0xffff8881090e19e0 (size 16):\n  comm \"51-i2c-ov2740\", pid 278, jiffies 4294781584 (age 23.613s)\n  hex dump (first 16 bytes):\n    00 f3 7c 0b 81 88 ff ff 80 75 6a 09 81 88 ff ff  ..|......uj.....\n  backtrace:\n    [<000000004e9fad8f>] __kmalloc_node+0x44/0x1b0\n    [<0000000039c802f4>] kvmalloc_node+0x34/0x180\n    [<000000009b8b5c63>] v4l2_ctrl_handler_init_class+0x11d/0x180\n[videodev]\n    [<0000000038644056>] ov2740_probe+0x37d/0x84f [ov2740]\n    [<0000000092489f59>] i2c_device_probe+0x28d/0x680\n    [<000000001038babe>] really_probe+0x17c/0x3f0\n    [<0000000098c7af1c>] __driver_probe_device+0xe3/0x170\n    [<00000000e1b3dc24>] device_driver_attach+0x34/0x80\n    [<000000005a04a34d>] bind_store+0x10b/0x1a0\n    [<00000000ce25d4f2>] drv_attr_store+0x49/0x70\n    [<000000007d9f4e9a>] sysfs_kf_write+0x8c/0xb0\n    [<00000000be6cff0f>] kernfs_fop_write_iter+0x216/0x2e0\n    [<0000000031ddb40a>] vfs_write+0x658/0x810\n    [<0000000041beecdd>] ksys_write+0xd6/0x1b0\n    [<0000000023755840>] do_syscall_64+0x38/0x90\n    [<00000000b2cc2da2>] entry_SYSCALL_64_after_hwframe+0x63/0xcd\n\nov2740_init_controls() won't clean all the allocated resources in fail\npath, which may causes the memleaks. Add v4l2_ctrl_handler_free() to\nprevent memleak.","published":"2025-09-17T15:15:39.000Z","lastModified":"2026-06-17T06:44:58.000Z","status":"Modified","sourceIdentifier":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","cvss":{"version":"3.1","score":5.5,"severity":"MEDIUM","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"},"cwe":["CWE-401"],"affected":["linux/linux kernel"],"epss":{"score":0.00202,"percentile":0.10029,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.20%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://git.kernel.org/stable/c/2d899592ed7829d0d5140853bac4d58742a6b8af","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/3969b2ebc66039306f505c7c630c5530800f83c0","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7c405ee63447f14eefcfe12a18aa749abbd596ea","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a163ee11345d8322321c28bd61631de32455b987","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fc33380ae06f438b652f66b9370b543976ac8a03","tags":["Patch"],"source":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-53349","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}