CVE-2025-68773None▾ SunlitIn the Linux kernel, the following vulnerability has been resolved: spi: fsl-cpm: Check length parity before switching to 16 bit mode Commit fc96ec826bce ("spi: fsl-cpm: Use 16 bit mode for large transfers with even size") failed to ma…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Exploit-prediction probability, daily snapshots since Sep 8.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
0.2% → 0.2%
In the Linux kernel, the following vulnerability has been resolved:
spi: fsl-cpm: Check length parity before switching to 16 bit mode
Commit fc96ec826bce ("spi: fsl-cpm: Use 16 bit mode for large transfers with even size") failed to make sure that the size is really even before switching to 16 bit mode. Until recently the problem went unnoticed because kernfs uses a pre-allocated bounce buffer of size PAGE_SIZE for reading EEPROM.
But commit 8ad6249c51d0 ("eeprom: at25: convert to spi-mem API") introduced an additional dynamically allocated bounce buffer whose size is exactly the size of the transfer, leading to a buffer overrun in the fsl-cpm driver when that size is odd.
Add the missing length parity verification and remain in 8 bit mode when the length is not even.
Linux >= 60afe299bb541a928ba39bcb4ae8d3e428d1c5a5 < c8f1d35076b78df61ace737e41cc1f4b7b63236cLinux >= 4badd33929c05ed314794b95f1af1308f7222be8 < 9c34a4a2ead00979d203a8c16bea87f0ef5291d8Linux >= 7f6738e003b364783f3019fdf6e7645bc8dd1643 < 837a23a11e0f734f096c7c7b0778d0e625e3dc87Linux >= fc96ec826bced75cc6b9c07a4ac44bbf651337ab < 3dd6d01384823e1bd8602873153d6fc4337ac4feLinux >= fc96ec826bced75cc6b9c07a4ac44bbf651337ab < 743cebcbd1b2609ec5057ab474979cef73d1b681Linux >= fc96ec826bced75cc6b9c07a4ac44bbf651337ab < be0b613198e6bfa104ad520397cab82ad3ec1771Linux >= fc96ec826bced75cc6b9c07a4ac44bbf651337ab < 1417927df8049a0194933861e9b098669a95c762Linux 42c04316d9275ec267d36e5e9064cd56c9884148Linux dc120f2d35b030390a2bc0f94dd5f37e900cae91Linux b558275c1b040f0e5aa56c862241f9212b6118c3Linux b9d9e8856f1c83e4277403f9b4c369b322ebcb12Linux 36a6d0f66c874666caf4e8be155b1be30f6231beLinux >= 5.10.181 < 5.10.248Linux >= 5.15.114 < 5.15.198Linux >= 6.1.29 < 6.1.160Linux >= 4.14.316 < 4.15Linux >= 4.19.284 < 4.20Linux >= 5.4.244 < 5.5Linux >= 6.2.16 < 6.3Linux >= 6.3.3 < 6.4Linux 6.4Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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