Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Bound image count in qla2x00_update_fru_versions() qla2x00_update_fru_versions() copies the user-supplied BSG request into a fixed 256-byte stack buffer (bsg[DMA_POOL_SIZE]) and then iterates list->count times over the qla_image_version array embedded in that buffer, advancing the image pointer each iteration. count is taken directly from user input with no upper bound, while only (DMA_POOL_SIZE - sizeof(list->count)) / sizeof(struct qla_image_version) = 6 entries actually fit. A larger count walks the image pointer off the end of the stack buffer, reading adjacent kernel stack memory and sending it to the device via qla2x00_write_sfp(). Reject requests whose declared count does not fit in the buffer.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 before af733bbfcf667af1871a2735fba2835b0da71efb; affected 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 before a9706d5e754e77515a92bb532bd0d73644979a1f; affected 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 before 7e3154c97ec15460f715dbbe4097c255cce110b1; affected 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 before 047f1f7ee6f85bde28abfdda9fa550191ddc0532; affected 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 before f93e8039e6fd54a3c027c6184daf00b745b576a0; affected 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 before 7b22b4cb8822805cef7ba618da6f76e1474d68bd; affected 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 before f2d4f025b67fcbfb2bbbadd3b5a6a43c4b436514; affected 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 before de62cf265dbe309f34f144a6cdbca9240317727e |
| Linux / Linux | affected 3.2; unaffected 0 before 3.2; unaffected 5.10.270 through 5.10.*; unaffected 5.15.221 through 5.15.*; unaffected 6.1.188 through 6.1.*; unaffected 6.6.157 through 6.6.*; unaffected 6.12.110 through 6.12.*; unaffected 6.18.51 through 6.18.*; unaffected 7.2.5 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/af733bbfcf667af1871a2735fba2835b0da71efb
- https://git.kernel.org/stable/c/a9706d5e754e77515a92bb532bd0d73644979a1f
- https://git.kernel.org/stable/c/7e3154c97ec15460f715dbbe4097c255cce110b1
- https://git.kernel.org/stable/c/047f1f7ee6f85bde28abfdda9fa550191ddc0532
- https://git.kernel.org/stable/c/f93e8039e6fd54a3c027c6184daf00b745b576a0
- https://git.kernel.org/stable/c/7b22b4cb8822805cef7ba618da6f76e1474d68bd
- https://git.kernel.org/stable/c/f2d4f025b67fcbfb2bbbadd3b5a6a43c4b436514
- https://git.kernel.org/stable/c/de62cf265dbe309f34f144a6cdbca9240317727e