Answer in brief
CVE-2026-89719 records a Unknown severity vulnerability in zram: fix out-of-bounds access in read_block_state(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), 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), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=c0265342bff4fcaa2cdf13f4596244c18d4a7ae5 <e7dbcb7a561a21e9a8f5b5fa90bb95aefbd0739d || >=c0265342bff4fcaa2cdf13f4596244c18d4a7ae5 <5e458fa714a55b6b64a9fe0c6d4fa609609f9ec3 || >=c0265342bff4fcaa2cdf13f4596244c18d4a7ae5 <391f057f44a51cc9418da5cba78b014324174264 | e7dbcb7a561a21e9a8f5b5fa90bb95aefbd0739d, 5e458fa714a55b6b64a9fe0c6d4fa609609f9ec3, 391f057f44a51cc9418da5cba78b014324174264 |
| Linux/Linuxgeneric | 4.18 | Not reported |
| Linux/Linuxgeneric | >=c0265342bff4fcaa2cdf13f4596244c18d4a7ae5 <6d52c1f43ff39ea1ebf8f016e847677f0b60cf2b || >=c0265342bff4fcaa2cdf13f4596244c18d4a7ae5 <e7dbcb7a561a21e9a8f5b5fa90bb95aefbd0739d || >=c0265342bff4fcaa2cdf13f4596244c18d4a7ae5 <5e458fa714a55b6b64a9fe0c6d4fa609609f9ec3 || >=c0265342bff4fcaa2cdf13f4596244c18d4a7ae5 <391f057f44a51cc9418da5cba78b014324174264 | 6d52c1f43ff39ea1ebf8f016e847677f0b60cf2b, e7dbcb7a561a21e9a8f5b5fa90bb95aefbd0739d, 5e458fa714a55b6b64a9fe0c6d4fa609609f9ec3, 391f057f44a51cc9418da5cba78b014324174264 |
| Linux/Linuxgeneric | >=c0265342bff4fcaa2cdf13f4596244c18d4a7ae5 <f5e9f3a75efc774f17ab3f33826630d7fe30c7ea || >=c0265342bff4fcaa2cdf13f4596244c18d4a7ae5 <6d52c1f43ff39ea1ebf8f016e847677f0b60cf2b || >=c0265342bff4fcaa2cdf13f4596244c18d4a7ae5 <e7dbcb7a561a21e9a8f5b5fa90bb95aefbd0739d || >=c0265342bff4fcaa2cdf13f4596244c18d4a7ae5 <5e458fa714a55b6b64a9fe0c6d4fa609609f9ec3 || >=c0265342bff4fcaa2cdf13f4596244c18d4a7ae5 <391f057f44a51cc9418da5cba78b014324174264 | f5e9f3a75efc774f17ab3f33826630d7fe30c7ea, 6d52c1f43ff39ea1ebf8f016e847677f0b60cf2b, e7dbcb7a561a21e9a8f5b5fa90bb95aefbd0739d, 5e458fa714a55b6b64a9fe0c6d4fa609609f9ec3, 391f057f44a51cc9418da5cba78b014324174264 |
Published upstream
Sep 11, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 21, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 11, 2026
In the Linux kernel, the following vulnerability has been resolved: zram: fix out-of-bounds access in read_block_state() read_block_state() calculates nr_pages before taking dev_lock. If the device is reset and reinitialized with a smaller disksize before lock acquisition, nr_pages still describes the old table. The subsequent loop can then call slot_lock() past the end of the newly allocated table. Read disksize after acquiring dev_lock and checking that the device is initialized. The read lock then keeps the table and its bound stable for the duration of the scan.
Quoted source text, attributed separately from HOL analysis.