{"cve":"CVE-2024-35921","nvd":{"published":"2024-05-19T11:15:48.443","modified":"2026-08-04T11:18:12.010","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: mediatek: vcodec: Fix oops when HEVC init fails\n\nThe stateless HEVC decoder saves the instance pointer in the context\nregardless if the initialization worked or not. This caused a use after\nfree, when the pointer is freed in case of a failure in the deinit\nfunction.\nOnly store the instance pointer when the initialization was successful,\nto solve this issue.\n\n Hardware name: Acer Tomato (rev3 - 4) board (DT)\n pstate: 80400009 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n pc : vcodec_vpu_send_msg+0x4c/0x190 [mtk_vcodec_dec]\n lr : vcodec_send_ap_ipi+0x78/0x170 [mtk_vcodec_dec]\n sp : ffff80008750bc20\n x29: ffff80008750bc20 x28: ffff1299f6d70000 x27: 0000000000000000\n x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000\n x23: ffff80008750bc98 x22: 000000000000a003 x21: ffffd45c4cfae000\n x20: 0000000000000010 x19: ffff1299fd668310 x18: 000000000000001a\n x17: 000000040044ffff x16: ffffd45cb15dc648 x15: 0000000000000000\n x14: ffff1299c08da1c0 x13: ffffd45cb1f87a10 x12: ffffd45cb2f5fe80\n x11: 0000000000000001 x10: 0000000000001b30 x9 : ffffd45c4d12b488\n x8 : 1fffe25339380d81 x7 : 0000000000000001 x6 : ffff1299c9c06c00\n x5 : 0000000000000132 x4 : 0000000000000000 x3 : 0000000000000000\n x2 : 0000000000000010 x1 : ffff80008750bc98 x0 : 0000000000000000\n Call trace:\n  vcodec_vpu_send_msg+0x4c/0x190 [mtk_vcodec_dec]\n  vcodec_send_ap_ipi+0x78/0x170 [mtk_vcodec_dec]\n  vpu_dec_deinit+0x1c/0x30 [mtk_vcodec_dec]\n  vdec_hevc_slice_deinit+0x30/0x98 [mtk_vcodec_dec]\n  vdec_if_deinit+0x38/0x68 [mtk_vcodec_dec]\n  mtk_vcodec_dec_release+0x20/0x40 [mtk_vcodec_dec]\n  fops_vcodec_release+0x64/0x118 [mtk_vcodec_dec]\n  v4l2_release+0x7c/0x100\n  __fput+0x80/0x2d8\n  __fput_sync+0x58/0x70\n  __arm64_sys_close+0x40/0x90\n  invoke_syscall+0x50/0x128\n  el0_svc_common.constprop.0+0x48/0xf0\n  do_el0_svc+0x24/0x38\n  el0_svc+0x38/0xd8\n  el0t_64_sync_handler+0xc0/0xc8\n  el0t_64_sync+0x1a8/0x1b0\n Code: d503201f f9401660 b900127f b900227f (f9400400)","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","score":7.8},"cwes":["CWE-416"],"references":["https://git.kernel.org/stable/c/521ce0ea7418298d754494fe53263c23c4c78a8e","https://git.kernel.org/stable/c/97c75ee5de060d271d80109b0c47cb6008439e5b","https://git.kernel.org/stable/c/ec25fc3c2c1e8958a51abcfed614f81446d918c4","https://git.kernel.org/stable/c/521ce0ea7418298d754494fe53263c23c4c78a8e","https://git.kernel.org/stable/c/97c75ee5de060d271d80109b0c47cb6008439e5b"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:50:30.954589733+00:00"},"epss":{"cve":"CVE-2024-35921","score":0.00236,"percentile":0.14638,"date":"2026-11-01"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}