In the Linux kernel, the following vulnerability has been resolved:
spi: spi-zynqmp-gqspi: return -ENOMEM if dma_map_single fails
The spi controller supports 44-bit address space on AXI in DMA mode,
so set dma_addr_t width to 44-bit to avoid using a swiotlb mapping.
In addition, if dma_map_single fails, it should return immediately
instead of continuing doing the DMA operation which bases on invalid
address.
This fixes the following crash which occurs in reading a big block
from flash:
[ 123.633577] zynqmp-qspi ff0f0000.spi: swiotlb buffer is full (sz: 4194304 bytes), total 32768 (slots), used 0 (slots)
[ 123.644230] zynqmp-qspi ff0f0000.spi: ERR:rxdma:memory not mapped
[ 123.784625] Unable to handle kernel paging request at virtual address 00000000003fffc0
[ 123.792536] Mem abort info:
[ 123.795313] ESR = 0x96000145
[ 123.798351] EC = 0x25: DABT (current EL), IL = 32 bits
[ 123.803655] SET = 0, FnV = 0
[ 123.806693] EA = 0, S1PTW = 0
[ 123.809818] Data abort info:
[ 123.812683] ISV = 0, ISS = 0x00000145
[ 123.816503] CM = 1, WnR = 1
[ 123.819455] user pgtable: 4k pages, 48-bit VAs, pgdp=0000000805047000
[ 123.825887] [00000000003fffc0] pgd=0000000803b45003, p4d=0000000803b45003, pud=0000000000000000
[ 123.834586] Internal error: Oops: 96000145 [#1] PREEMPT SMP
Metrics
Affected Vendors & Products
References
History
Mon, 04 Nov 2024 13:15:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Metrics |
ssvc
|
Tue, 10 Sep 2024 19:15:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Weaknesses | CWE-253 | CWE-252 CWE-392 |
MITRE
Status: PUBLISHED
Assigner: Linux
Published: 2024-02-28T08:13:50.931Z
Updated: 2024-12-19T07:34:15.406Z
Reserved: 2024-02-27T18:42:55.970Z
Link: CVE-2021-47047
Vulnrichment
Updated: 2024-08-04T05:24:39.320Z
NVD
Status : Awaiting Analysis
Published: 2024-02-28T09:15:40.323
Modified: 2024-11-21T06:35:15.587
Link: CVE-2021-47047
Redhat