[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-CVE-2025-21845":6},{"stargazers_count":4,"fetched_at":5},8,"2026-09-19T04:32:17.889Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":18,"aliases":19,"duplicate_of":9,"upstream":21,"downstream":22,"duplicates":38,"related":39,"reserved_at":9,"published_at":46,"modified_at":47,"state":48,"summary":49,"references_raw":58,"kevs":87,"epss":88,"epss_history":91,"metrics":364,"affected":374},"CVE-2025-21845","In the Linux kernel, the following vulnerability has been resolved:\n\nmtd: spi-nor: sst: Fix SST write failure\n\n'commit 18bcb4aa54ea (\"mtd: spi-nor: sst: Factor out common write operation\nto `sst_nor_write_data()`\")' introduced a bug where only one byte of data\nis written, regardless of the number of bytes passed to\nsst_nor_write_data(), causing a kernel crash during the write operation.\nEnsure the correct number of bytes are written as passed to\nsst_nor_write_data().\n\nCall trace:\n[   57.400180] ------------[ cut here ]------------\n[   57.404842] While writing 2 byte written 1 bytes\n[   57.409493] WARNING: CPU: 0 PID: 737 at drivers/mtd/spi-nor/sst.c:187 sst_nor_write_data+0x6c/0x74\n[   57.418464] Modules linked in:\n[   57.421517] CPU: 0 UID: 0 PID: 737 Comm: mtd_debug Not tainted 6.12.0-g5ad04afd91f9 #30\n[   57.429517] Hardware name: Xilinx Versal A2197 Processor board revA - x-prc-02 revA (DT)\n[   57.437600] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[   57.444557] pc : sst_nor_write_data+0x6c/0x74\n[   57.448911] lr : sst_nor_write_data+0x6c/0x74\n[   57.453264] sp : ffff80008232bb40\n[   57.456570] x29: ffff80008232bb40 x28: 0000000000010000 x27: 0000000000000001\n[   57.463708] x26: 000000000000ffff x25: 0000000000000000 x24: 0000000000000000\n[   57.470843] x23: 0000000000010000 x22: ffff80008232bbf0 x21: ffff000816230000\n[   57.477978] x20: ffff0008056c0080 x19: 0000000000000002 x18: 0000000000000006\n[   57.485112] x17: 0000000000000000 x16: 0000000000000000 x15: ffff80008232b580\n[   57.492246] x14: 0000000000000000 x13: ffff8000816d1530 x12: 00000000000004a4\n[   57.499380] x11: 000000000000018c x10: ffff8000816fd530 x9 : ffff8000816d1530\n[   57.506515] x8 : 00000000fffff7ff x7 : ffff8000816fd530 x6 : 0000000000000001\n[   57.513649] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000\n[   57.520782] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0008049b0000\n[   57.527916] Call trace:\n[   57.530354]  sst_nor_write_data+0x6c/0x74\n[   57.534361]  sst_nor_write+0xb4/0x18c\n[   57.538019]  mtd_write_oob_std+0x7c/0x88\n[   57.541941]  mtd_write_oob+0x70/0xbc\n[   57.545511]  mtd_write+0x68/0xa8\n[   57.548733]  mtdchar_write+0x10c/0x290\n[   57.552477]  vfs_write+0xb4/0x3a8\n[   57.555791]  ksys_write+0x74/0x10c\n[   57.559189]  __arm64_sys_write+0x1c/0x28\n[   57.563109]  invoke_syscall+0x54/0x11c\n[   57.566856]  el0_svc_common.constprop.0+0xc0/0xe0\n[   57.571557]  do_el0_svc+0x1c/0x28\n[   57.574868]  el0_svc+0x30/0xcc\n[   57.577921]  el0t_64_sync_handler+0x120/0x12c\n[   57.582276]  el0t_64_sync+0x190/0x194\n[   57.585933] ---[ end trace 0000000000000000 ]---\n\n[pratyush@kernel.org: add Cc stable tag]",null,[11],{"_key":12,"id":12,"name":13,"description":14,"type":15,"status":16,"abstraction":9,"likelihood_of_exploit":9,"capec":17},"NVD-CWE-NOINFO","Insufficient Information","NVD uses this CWE ID when there is insufficient information to assign a specific 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