Answer in brief
CVE-2026-89864 records a Unknown severity vulnerability in scsi: qla2xxx: Bound i2c->length in I2C bsg handlers. 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 | >=9ebb5d9c69f1f5721f9f6f49e501c674c1e184ae <8f01f886cc5e7bbc16cbf1a9928fdebbc911e973 || >=9ebb5d9c69f1f5721f9f6f49e501c674c1e184ae <2be39946abcde5a6416fb074ef728429e246a996 || >=9ebb5d9c69f1f5721f9f6f49e501c674c1e184ae <522d6dcdc645d8f97d6b4cdfd6d8eea307f3ff0e || >=9ebb5d9c69f1f5721f9f6f49e501c674c1e184ae <9a756f277eb89f769dbf380f38245c270d31fdb5 || >=9ebb5d9c69f1f5721f9f6f49e501c674c1e184ae <32d6df14fdab71fe1ba304fd9a0db0411ea2e043 || >=9ebb5d9c69f1f5721f9f6f49e501c674c1e184ae <97ca58b0fb026799b99e3d552d5f69cf9a3113ad || >=9ebb5d9c69f1f5721f9f6f49e501c674c1e184ae <47049fdadc0eaa115e813735b827e1379c0d2cf8 || >=9ebb5d9c69f1f5721f9f6f49e501c674c1e184ae <0918ee2c0eeb4d7f45b82b3dc11e65c2d9b7ad59 | 8f01f886cc5e7bbc16cbf1a9928fdebbc911e973, 2be39946abcde5a6416fb074ef728429e246a996, 522d6dcdc645d8f97d6b4cdfd6d8eea307f3ff0e, 9a756f277eb89f769dbf380f38245c270d31fdb5, 32d6df14fdab71fe1ba304fd9a0db0411ea2e043, 97ca58b0fb026799b99e3d552d5f69cf9a3113ad, 47049fdadc0eaa115e813735b827e1379c0d2cf8, 0918ee2c0eeb4d7f45b82b3dc11e65c2d9b7ad59 |
| Linux/Linuxgeneric | 3.7 | Not reported |
Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 16, 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: scsi: qla2xxx: Bound i2c->length in I2C bsg handlers struct qla_i2c_access carries a 16-bit length field alongside a fixed 64-byte buffer: struct qla_i2c_access { uint16_t device, offset, option, length; uint8_t buffer[0x40]; } __packed; qla2x00_write_i2c() and qla2x00_read_i2c() use the user-supplied i2c->length without any bounds check. i2c is overlaid on a 256-byte on-stack buffer and sfp is a 256-byte DMA-pool buffer, so a length up to 65535 overruns both: - write: memcpy(sfp, i2c->buffer, i2c->length) over-reads the stack and over-writes the sfp heap buffer, and qla2x00_write_sfp() then DMAs i2c->length bytes out of the 256-byte buffer. - read: qla2x00_read_sfp() DMAs i2c->length bytes into the 256-byte sfp, then memcpy(i2c->buffer, sfp, i2c->length) overflows the 64-byte buffer inside the on-stack array. A caller holding CAP_SYS_RAWIO can use this to corrupt the heap and the kernel stack. Reject requests whose length exceeds the buffer before any copy or DMA transfer in both handlers.
Quoted source text, attributed separately from HOL analysis.