Answer in brief
CVE-2026-89870 records a High severity (CVSS 7.8) vulnerability in media: zoran: Avoid freeing a registered video_device twice. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=82e3a496eb56da0b9f29fdc5b63cedb3289e91de <3ad6cf27505017a6794f5f96c31218c2291e951b || >=82e3a496eb56da0b9f29fdc5b63cedb3289e91de <c4acac8cdc005b2d14b6cef5e215d264212857f3 || >=82e3a496eb56da0b9f29fdc5b63cedb3289e91de <4d99d8d0d895489064783601a516bd45812fa992 || >=82e3a496eb56da0b9f29fdc5b63cedb3289e91de <f1c4f3885df1f09bcab5296d86834d104f865e86 || >=82e3a496eb56da0b9f29fdc5b63cedb3289e91de <672dbccf4351370dad002d3c78dbb29ca1588f22 || >=82e3a496eb56da0b9f29fdc5b63cedb3289e91de <0735e0b5a96761a9ce277a238e834008ad92a0a5 || bd01629315ffd5b63da91d0bd529a77d30e55028 || ff3357bffd9fb78f59762d8955afc7382a279079 || c1ba65100a359fe28cfe37e09e10c99f247cbf1e || 1e501ec38796f43e995731d1bcd4173cb1ccfce0 || >=5.10.110 <5.11 || >=5.15.33 <5.16 || >=5.16.19 <5.17 || >=5.17.2 <5.18 | 3ad6cf27505017a6794f5f96c31218c2291e951b, c4acac8cdc005b2d14b6cef5e215d264212857f3, 4d99d8d0d895489064783601a516bd45812fa992, f1c4f3885df1f09bcab5296d86834d104f865e86, 672dbccf4351370dad002d3c78dbb29ca1588f22, 0735e0b5a96761a9ce277a238e834008ad92a0a5, 5.11, 5.16, 5.17, 5.18 |
| Linux/Linuxgeneric | 5.18 | Not reported |
| Linux/Linuxgeneric | >=bd01629315ffd5b63da91d0bd529a77d30e55028 <29792762e65d4eefbe75b6048c59763fd844191a || >=ff3357bffd9fb78f59762d8955afc7382a279079 <99277a387802eb6c1907c73f09d746908cc64913 || >=82e3a496eb56da0b9f29fdc5b63cedb3289e91de <3ad6cf27505017a6794f5f96c31218c2291e951b || >=82e3a496eb56da0b9f29fdc5b63cedb3289e91de <c4acac8cdc005b2d14b6cef5e215d264212857f3 || >=82e3a496eb56da0b9f29fdc5b63cedb3289e91de <4d99d8d0d895489064783601a516bd45812fa992 || >=82e3a496eb56da0b9f29fdc5b63cedb3289e91de <f1c4f3885df1f09bcab5296d86834d104f865e86 || >=82e3a496eb56da0b9f29fdc5b63cedb3289e91de <672dbccf4351370dad002d3c78dbb29ca1588f22 || >=82e3a496eb56da0b9f29fdc5b63cedb3289e91de <0735e0b5a96761a9ce277a238e834008ad92a0a5 || c1ba65100a359fe28cfe37e09e10c99f247cbf1e || 1e501ec38796f43e995731d1bcd4173cb1ccfce0 || >=5.10.110 <5.10.273 || >=5.15.33 <5.15.224 || >=5.16.19 <5.17 || >=5.17.2 <5.18 | 29792762e65d4eefbe75b6048c59763fd844191a, 99277a387802eb6c1907c73f09d746908cc64913, 3ad6cf27505017a6794f5f96c31218c2291e951b, c4acac8cdc005b2d14b6cef5e215d264212857f3, 4d99d8d0d895489064783601a516bd45812fa992, f1c4f3885df1f09bcab5296d86834d104f865e86, 672dbccf4351370dad002d3c78dbb29ca1588f22, 0735e0b5a96761a9ce277a238e834008ad92a0a5, 5.10.273, 5.15.224, 5.17, 5.18 |
Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 30, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 16, 2026
In the Linux kernel, the following vulnerability has been resolved: media: zoran: Avoid freeing a registered video_device twice zoran_init_video_device() installs zoran_vdev_release() as the video_device release callback through zoran_template. After video_register_device() succeeds, video_unregister_device() drops the registered video_device reference and the V4L2 core eventually invokes that release callback, which kfree()s the video_device. zoran_exit_video_devices() called video_unregister_device() and then kfree(zr->video_dev), so device teardown could free the same video_device twice. Remove the direct kfree() and clear the cached pointer after unregistering. The pre-registration failure path keeps its manual free because the video_device was not registered there. This issue was found by a static analysis checker and confirmed by manual source review.
Quoted source text, attributed separately from HOL analysis.