{"id":"DEBIAN-CVE-2022-50359","details":"In the Linux kernel, the following vulnerability has been resolved:  media: cx88: Fix a null-ptr-deref bug in buffer_prepare()  When the driver calls cx88_risc_buffer() to prepare the buffer, the function call may fail, resulting in a empty buffer and null-ptr-deref later in buffer_queue().  The following log can reveal it:  [   41.822762] general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN PTI [   41.824488] KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] [   41.828027] RIP: 0010:buffer_queue+0xc2/0x500 [   41.836311] Call Trace: [   41.836945]  __enqueue_in_driver+0x141/0x360 [   41.837262]  vb2_start_streaming+0x62/0x4a0 [   41.838216]  vb2_core_streamon+0x1da/0x2c0 [   41.838516]  __vb2_init_fileio+0x981/0xbc0 [   41.839141]  __vb2_perform_fileio+0xbf9/0x1120 [   41.840072]  vb2_fop_read+0x20e/0x400 [   41.840346]  v4l2_read+0x215/0x290 [   41.840603]  vfs_read+0x162/0x4c0  Fix this by checking the return value of cx88_risc_buffer()  [hverkuil: fix coding style issues]","modified":"2026-09-01T20:04:58.461911242Z","published":"2025-09-17T15:15:34.633Z","upstream":["CVE-2022-50359"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2022-50359"}],"affected":[{"package":{"name":"linux","ecosystem":"Debian:12","purl":"pkg:deb/debian/linux?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-50359.json"}},{"package":{"name":"linux","ecosystem":"Debian:13","purl":"pkg:deb/debian/linux?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-50359.json"}},{"package":{"name":"linux","ecosystem":"Debian:14","purl":"pkg:deb/debian/linux?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.3-1"}]}],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2022-50359.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"}]}