Answer in brief
CVE-2026-74376 records a Unknown severity vulnerability in md/raid10: reset read_slot when reusing r10bio for discard. The current sources do not mark it as known exploited. The current feed maps 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.
Answer in brief
CVE-2026-74376 records a Unknown severity vulnerability in md/raid10: reset read_slot when reusing r10bio for discard. The current sources do not mark it as known exploited. The current feed maps 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). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d30588b2731fb01e1616cf16c3fe79a1443e29aa <3cb2a606ce4902eceabe68338df0653312f861f8 || >=d30588b2731fb01e1616cf16c3fe79a1443e29aa <561c9711e4f545d6464a023168bdee03b00fa945 || >=d30588b2731fb01e1616cf16c3fe79a1443e29aa <ce3030e92f14362880055de5fe3c258971118853 || >=d30588b2731fb01e1616cf16c3fe79a1443e29aa <742e4afd247d9c972695227716b03d432a7e1d26 || >=d30588b2731fb01e1616cf16c3fe79a1443e29aa <b7313f23ea5a79b199a007bfad64a866cc2c22e7 || >=d30588b2731fb01e1616cf16c3fe79a1443e29aa <eb04e3e9c14ed15914f5fd2eae8b6435f54f095f || >=d30588b2731fb01e1616cf16c3fe79a1443e29aa <6b8a26af065ddc93de2aa5c9f0df98dce9723442 | 3cb2a606ce4902eceabe68338df0653312f861f8, 561c9711e4f545d6464a023168bdee03b00fa945, ce3030e92f14362880055de5fe3c258971118853, 742e4afd247d9c972695227716b03d432a7e1d26, b7313f23ea5a79b199a007bfad64a866cc2c22e7, eb04e3e9c14ed15914f5fd2eae8b6435f54f095f, 6b8a26af065ddc93de2aa5c9f0df98dce9723442 |
| Linux/Linuxgeneric | 5.13 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: md/raid10: reset read_slot when reusing r10bio for discard put_all_bios() always drops devs[i].bio, but it only drops devs[i].repl_bio when r10_bio->read_slot < 0. If discard reuses an r10bio that was previously used for a read, read_slot can still be non-negative, and discard cleanup can skip bio_put() on repl_bio. Reset read_slot to -1 when preparing an r10bio for discard so the replacement bio is always released correctly.
Quoted source text, attributed separately from HOL analysis.
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). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=d30588b2731fb01e1616cf16c3fe79a1443e29aa <3cb2a606ce4902eceabe68338df0653312f861f8 || >=d30588b2731fb01e1616cf16c3fe79a1443e29aa <561c9711e4f545d6464a023168bdee03b00fa945 || >=d30588b2731fb01e1616cf16c3fe79a1443e29aa <ce3030e92f14362880055de5fe3c258971118853 || >=d30588b2731fb01e1616cf16c3fe79a1443e29aa <742e4afd247d9c972695227716b03d432a7e1d26 || >=d30588b2731fb01e1616cf16c3fe79a1443e29aa <b7313f23ea5a79b199a007bfad64a866cc2c22e7 || >=d30588b2731fb01e1616cf16c3fe79a1443e29aa <eb04e3e9c14ed15914f5fd2eae8b6435f54f095f || >=d30588b2731fb01e1616cf16c3fe79a1443e29aa <6b8a26af065ddc93de2aa5c9f0df98dce9723442 | 3cb2a606ce4902eceabe68338df0653312f861f8, 561c9711e4f545d6464a023168bdee03b00fa945, ce3030e92f14362880055de5fe3c258971118853, 742e4afd247d9c972695227716b03d432a7e1d26, b7313f23ea5a79b199a007bfad64a866cc2c22e7, eb04e3e9c14ed15914f5fd2eae8b6435f54f095f, 6b8a26af065ddc93de2aa5c9f0df98dce9723442 |
| Linux/Linuxgeneric | 5.13 | Not reported |
Published upstream
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 15, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 15, 2026
In the Linux kernel, the following vulnerability has been resolved: md/raid10: reset read_slot when reusing r10bio for discard put_all_bios() always drops devs[i].bio, but it only drops devs[i].repl_bio when r10_bio->read_slot < 0. If discard reuses an r10bio that was previously used for a read, read_slot can still be non-negative, and discard cleanup can skip bio_put() on repl_bio. Reset read_slot to -1 when preparing an r10bio for discard so the replacement bio is always released correctly.
Quoted source text, attributed separately from HOL analysis.