{"id":"CVE-2023-53637","summary":"media: i2c: ov772x: Fix memleak in ov772x_probe()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: i2c: ov772x: Fix memleak in ov772x_probe()\n\nA memory leak was reported when testing ov772x with bpf mock device:\n\nAssertionError: unreferenced object 0xffff888109afa7a8 (size 8):\n  comm \"python3\", pid 279, jiffies 4294805921 (age 20.681s)\n  hex dump (first 8 bytes):\n    80 22 88 15 81 88 ff ff                          .\"......\n  backtrace:\n    [\u003c000000009990b438\u003e] __kmalloc_node+0x44/0x1b0\n    [\u003c000000009e32f7d7\u003e] kvmalloc_node+0x34/0x180\n    [\u003c00000000faf48134\u003e] v4l2_ctrl_handler_init_class+0x11d/0x180 [videodev]\n    [\u003c00000000da376937\u003e] ov772x_probe+0x1c3/0x68c [ov772x]\n    [\u003c000000003f0d225e\u003e] i2c_device_probe+0x28d/0x680\n    [\u003c00000000e0b6db89\u003e] really_probe+0x17c/0x3f0\n    [\u003c000000001b19fcee\u003e] __driver_probe_device+0xe3/0x170\n    [\u003c0000000048370519\u003e] driver_probe_device+0x49/0x120\n    [\u003c000000005ead07a0\u003e] __device_attach_driver+0xf7/0x150\n    [\u003c0000000043f452b8\u003e] bus_for_each_drv+0x114/0x180\n    [\u003c00000000358e5596\u003e] __device_attach+0x1e5/0x2d0\n    [\u003c0000000043f83c5d\u003e] bus_probe_device+0x126/0x140\n    [\u003c00000000ee0f3046\u003e] device_add+0x810/0x1130\n    [\u003c00000000e0278184\u003e] i2c_new_client_device+0x359/0x4f0\n    [\u003c0000000070baf34f\u003e] of_i2c_register_device+0xf1/0x110\n    [\u003c00000000a9f2159d\u003e] of_i2c_notify+0x100/0x160\nunreferenced object 0xffff888119825c00 (size 256):\n  comm \"python3\", pid 279, jiffies 4294805921 (age 20.681s)\n  hex dump (first 32 bytes):\n    00 b4 a5 17 81 88 ff ff 00 5e 82 19 81 88 ff ff  .........^......\n    10 5c 82 19 81 88 ff ff 10 5c 82 19 81 88 ff ff  .\\.......\\......\n  backtrace:\n    [\u003c000000009990b438\u003e] __kmalloc_node+0x44/0x1b0\n    [\u003c000000009e32f7d7\u003e] kvmalloc_node+0x34/0x180\n    [\u003c0000000073d88e0b\u003e] v4l2_ctrl_new.cold+0x19b/0x86f [videodev]\n    [\u003c00000000b1f576fb\u003e] v4l2_ctrl_new_std+0x16f/0x210 [videodev]\n    [\u003c00000000caf7ac99\u003e] ov772x_probe+0x1fa/0x68c [ov772x]\n    [\u003c000000003f0d225e\u003e] i2c_device_probe+0x28d/0x680\n    [\u003c00000000e0b6db89\u003e] really_probe+0x17c/0x3f0\n    [\u003c000000001b19fcee\u003e] __driver_probe_device+0xe3/0x170\n    [\u003c0000000048370519\u003e] driver_probe_device+0x49/0x120\n    [\u003c000000005ead07a0\u003e] __device_attach_driver+0xf7/0x150\n    [\u003c0000000043f452b8\u003e] bus_for_each_drv+0x114/0x180\n    [\u003c00000000358e5596\u003e] __device_attach+0x1e5/0x2d0\n    [\u003c0000000043f83c5d\u003e] bus_probe_device+0x126/0x140\n    [\u003c00000000ee0f3046\u003e] device_add+0x810/0x1130\n    [\u003c00000000e0278184\u003e] i2c_new_client_device+0x359/0x4f0\n    [\u003c0000000070baf34f\u003e] of_i2c_register_device+0xf1/0x110\n\nThe reason is that if priv-\u003ehdl.error is set, ov772x_probe() jumps to the\nerror_mutex_destroy without doing v4l2_ctrl_handler_free(), and all\nresources allocated in v4l2_ctrl_handler_init() and v4l2_ctrl_new_std()\nare leaked.","modified":"2026-04-02T09:44:39.889603Z","published":"2025-10-07T15:19:38.317Z","related":["SUSE-SU-2025:4111-1","SUSE-SU-2025:4139-1","SUSE-SU-2025:4149-1","SUSE-SU-2025:4320-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53637.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/1da495101ef7507eb4f4b1dbec2874d740eff251"},{"type":"WEB","url":"https://git.kernel.org/stable/c/448ce1cd50387b1345ec14eb191ef05f7afc2a26"},{"type":"WEB","url":"https://git.kernel.org/stable/c/7485edb2b6ca5960205c0a49bedfd09bba30e521"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ac93f8ac66e60227bed42d5a023f0e6c15b52c0a"},{"type":"WEB","url":"https://git.kernel.org/stable/c/c86d760c1c6855a6131e78d0ddacc48c79324ac3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/cc3b6011d7a9f149489eb9420c6305a779162c57"},{"type":"WEB","url":"https://git.kernel.org/stable/c/dfaafeb8e9537969e8dba75491f732478c7fa9d6"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53637.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-53637"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"1112babde21483d86ed3fbad1320b0ddf9ab2ece"},{"fixed":"cc3b6011d7a9f149489eb9420c6305a779162c57"},{"fixed":"448ce1cd50387b1345ec14eb191ef05f7afc2a26"},{"fixed":"dfaafeb8e9537969e8dba75491f732478c7fa9d6"},{"fixed":"1da495101ef7507eb4f4b1dbec2874d740eff251"},{"fixed":"ac93f8ac66e60227bed42d5a023f0e6c15b52c0a"},{"fixed":"c86d760c1c6855a6131e78d0ddacc48c79324ac3"},{"fixed":"7485edb2b6ca5960205c0a49bedfd09bba30e521"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-53637.json"}}],"schema_version":"1.7.5"}