Answer in brief
CVE-2026-98777 records a Unknown severity vulnerability in binder: fix leaked fd fixups on TF_UPDATE_TXN supersede. 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.
A CVSS score is not reported in the current record. 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 | >=9864bb4801331daa48514face9d0f4861e4d485b <7fd609fb0e9dcbc4d7a1e4da1af5368c0555ff55 || >=9864bb4801331daa48514face9d0f4861e4d485b <1299cb3fb061598496086fc87ff291057831148e || >=9864bb4801331daa48514face9d0f4861e4d485b <6673f4f21e2fddfed0abe1eb9045cc958e6db130 || >=9864bb4801331daa48514face9d0f4861e4d485b <c4c02084d6687d5cd5edccaf52cc45e5160f1184 | 7fd609fb0e9dcbc4d7a1e4da1af5368c0555ff55, 1299cb3fb061598496086fc87ff291057831148e, 6673f4f21e2fddfed0abe1eb9045cc958e6db130, c4c02084d6687d5cd5edccaf52cc45e5160f1184 |
| Linux/Linuxgeneric | 6.0 | Not reported |
| Linux/Linuxgeneric | >=9864bb4801331daa48514face9d0f4861e4d485b <a7329ea53d04f0c6135d02905810cd6f42acdf45 || >=9864bb4801331daa48514face9d0f4861e4d485b <7fd609fb0e9dcbc4d7a1e4da1af5368c0555ff55 || >=9864bb4801331daa48514face9d0f4861e4d485b <1299cb3fb061598496086fc87ff291057831148e || >=9864bb4801331daa48514face9d0f4861e4d485b <6673f4f21e2fddfed0abe1eb9045cc958e6db130 || >=9864bb4801331daa48514face9d0f4861e4d485b <c4c02084d6687d5cd5edccaf52cc45e5160f1184 | a7329ea53d04f0c6135d02905810cd6f42acdf45, 7fd609fb0e9dcbc4d7a1e4da1af5368c0555ff55, 1299cb3fb061598496086fc87ff291057831148e, 6673f4f21e2fddfed0abe1eb9045cc958e6db130, c4c02084d6687d5cd5edccaf52cc45e5160f1184 |
Published upstream
Oct 18, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 18, 2026
In the Linux kernel, the following vulnerability has been resolved: binder: fix leaked fd fixups on TF_UPDATE_TXN supersede When a TF_UPDATE_TXN transaction supersedes a pending async transaction in a frozen process, the outdated transaction is freed with kfree() directly. This skips binder_free_txn_fixups(), leaking all binder_txn_fd_fixup entries and their fget()'d struct file references. The leaked file refcounts never reach zero, so the struct file objects are permanently pinned in memory. They survive process exit and accumulate across invocations until file-max exhaustion. Every other transaction cleanup path (binder_free_transaction(), binder_transaction() error paths, binder_release_work()) correctly calls binder_free_txn_fixups(). Add the missing call before kfree() in the t_outdated cleanup block.
Quoted source text, attributed separately from HOL analysis.