CVE-2025-21845
published 2025-03-12CVE-2025-21845: In the Linux kernel, the following vulnerability has been resolved: mtd: spi-nor: sst: Fix SST write failure 'commit 18bcb4aa54ea ("mtd: spi-nor: sst: Factor…
PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.24%
15.8th percentile
In the Linux kernel, the following vulnerability has been resolved:
mtd: spi-nor: sst: Fix SST write failure
'commit 18bcb4aa54ea ("mtd: spi-nor: sst: Factor out common write operation
to `sst_nor_write_data()`")' introduced a bug where only one byte of data
is written, regardless of the number of bytes passed to
sst_nor_write_data(), causing a kernel crash during the write operation.
Ensure the correct number of bytes are written as passed to
sst_nor_write_data().
Call trace:
[ 57.400180] ------------[ cut here ]------------
[ 57.404842] While writing 2 byte written 1 bytes
[ 57.409493] WARNING: CPU: 0 PID: 737 at drivers/mtd/spi-nor/sst.c:187 sst_nor_write_data+0x6c/0x74
[ 57.418464] Modules linked in:
[ 57.421517] CPU: 0 UID: 0 PID: 737 Comm: mtd_debug Not tainted 6.12.0-g5ad04afd91f9 #30
[ 57.429517] Hardware name: Xilinx Versal A2197 Processor board revA - x-prc-02 revA (DT)
[ 57.437600] pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 57.444557] pc : sst_nor_write_data+0x6c/0x74
[ 57.448911] lr : sst_nor_write_data+0x6c/0x74
[ 57.453264] sp : ffff80008232bb40
[ 57.456570] x29: ffff80008232bb40 x28: 0000000000010000 x27: 0000000000000001
[ 57.463708] x26: 000000000000ffff x25: 0000000000000000 x24: 0000000000000000
[ 57.470843] x23: 0000000000010000 x22: ffff80008232bbf0 x21: ffff000816230000
[ 57.477978] x20: ffff0008056c0080 x19: 0000000000000002 x18: 0000000000000006
[ 57.485112] x17: 0000000000000000 x16: 0000000000000000 x15: ffff80008232b580
[ 57.492246] x14: 0000000000000000 x13: ffff8000816d1530 x12: 00000000000004a4
[ 57.499380] x11: 000000000000018c x10: ffff8000816fd530 x9 : ffff8000816d1530
[ 57.506515] x8 : 00000000fffff7ff x7 : ffff8000816fd530 x6 : 0000000000000001
[ 57.513649] x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000000
[ 57.520782] x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff0008049b0000
[ 57.527916] Call trace:
[ 57.530354] sst_nor_write_data+0x6c/0x74
[ 57.534361] sst_nor_write+0xb4/0x18c
[ 5
Affected
12 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.12.17-1 (forky) | linux 6.12.17-1 (forky) |
| linux | linux | — | — |
| linux | linux | >= 18bcb4aa54eab75dce41e5c176a1c2bff94f0f79 < bb1accc7e0f688886f0c634f2e878b8ac4ee6a58 | bb1accc7e0f688886f0c634f2e878b8ac4ee6a58 |
| linux | linux | >= 18bcb4aa54eab75dce41e5c176a1c2bff94f0f79 < 9553391f32f8c43e12fc7c04e1035160b5ea20bf | 9553391f32f8c43e12fc7c04e1035160b5ea20bf |
| linux | linux | >= 18bcb4aa54eab75dce41e5c176a1c2bff94f0f79 < 539bd20352832b9244238a055eb169ccf1c41ff6 | 539bd20352832b9244238a055eb169ccf1c41ff6 |
| linux | linux | >= b7cd63d13faef7ca5cf31ffa45ebf08829e4c9a7 < f7c14993dc2f1eca661975c0ff90a6e2098ecd41 | f7c14993dc2f1eca661975c0ff90a6e2098ecd41 |
| linux | linux | >= b925a5787b6e1d05731eb2dcc31dcaafc40ec2b6 < f791837015a0d20f584d0ed368393f119a00018f | f791837015a0d20f584d0ed368393f119a00018f |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 0 < 6.12.17-1 | 6.12.17-1 |
| linux | linux_kernel | >= 0 < 6.12.17-1 | 6.12.17-1 |
| linux | linux_kernel | >= 6.12 < 6.12.17 | 6.12.17 |
| linux | linux_kernel | >= 6.13 < 6.13.5 | 6.13.5 |
CVSS provenance
nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5LOW
vendor_redhat5.5MEDIUM
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Red Hat
kernel: mtd: spi-nor: sst: Fix SST write failure
vendor_redhat·2025-03-12·CVSS 5.5
CVE-2025-21845 [MEDIUM] CWE-99 kernel: mtd: spi-nor: sst: Fix SST write failure
kernel: mtd: spi-nor: sst: Fix SST write failure
In the Linux kernel, the following vulnerability has been resolved:
mtd: spi-nor: sst: Fix SST write failure
'commit 18bcb4aa54ea ("mtd: spi-nor: sst: Factor out common write operation
to `sst_nor_write_data()`")' introduced a bug where only one byte of data
is written, regardless of the number of bytes passed to
sst_nor_write_data(), causing a kernel crash during the write operation.
Ensure the correct number of bytes are written as passed to
sst_nor_write_data().
Call trace:
[ 57.400180] ------------[ cut here ]------------
[ 57.404842] While writing 2 byte written 1 bytes
[ 57.409493] WARNING: CPU: 0 PID: 737 at drivers/mtd/spi-nor/sst.c:187 sst_nor_write_data+0x6c/0x74
[ 57.418464] Modules linked in:
[ 57.421517] CPU: 0 UID: 0 PID: 737
Debian
CVE-2025-21845: linux - In the Linux kernel, the following vulnerability has been resolved: mtd: spi-no...
vendor_debian·2025·CVSS 5.5
CVE-2025-21845 [MEDIUM] CVE-2025-21845: linux - In the Linux kernel, the following vulnerability has been resolved: mtd: spi-no...
In the Linux kernel, the following vulnerability has been resolved: mtd: spi-nor: sst: Fix SST write failure 'commit 18bcb4aa54ea ("mtd: spi-nor: sst: Factor out common write operation to `sst_nor_write_data()`")' introduced a bug where only one byte of data is written, regardless of the number of bytes passed to sst_nor_write_data(), causing a kernel crash during the write operation. Ensure the correct number of bytes are written as passed to sst_nor_write_data(). Call trace: [ 57.400180] ------------[ cut here ]------------ [ 57.404842] While writing 2 byte written 1 bytes [ 57.409493] WARNING: CPU: 0 PID: 737 at drivers/mtd/spi-nor/sst.c:187 sst_nor_write_data+0x6c/0x74 [ 57.418464] Modules linked in: [ 57.421517] CPU: 0 UID: 0 PID: 737 Comm: mtd_debug Not tainted 6.12.0-g5ad04afd91f9 #
VulDB
Linux Kernel up to 6.12.16/6.13.4/6.14-rc3 mtd sst.c sst_nor_write_data state issue (WID-SEC-2025-0545)
vuldb·2026-05-17·CVSS 5.5
CVE-2025-21845 [MEDIUM] Linux Kernel up to 6.12.16/6.13.4/6.14-rc3 mtd sst.c sst_nor_write_data state issue (WID-SEC-2025-0545)
A vulnerability has been found in Linux Kernel up to 6.12.16/6.13.4/6.14-rc3 and classified as problematic. Affected by this vulnerability is the function sst_nor_write_data of the file drivers/mtd/spi-nor/sst.c of the component mtd. The manipulation leads to state issue.
This vulnerability is traded as CVE-2025-21845. Access to the local network is required for this attack to succeed. There is no exploit available.
The affected component should be upgraded.
GHSA
GHSA-263p-9rp6-x92j: In the Linux kernel, the following vulnerability has been resolved:
mtd: spi-nor: sst: Fix SST write failure
'commit 18bcb4aa54ea ("mtd: spi-nor: ss
ghsa_unreviewed·2025-03-12
CVE-2025-21845 [MEDIUM] GHSA-263p-9rp6-x92j: In the Linux kernel, the following vulnerability has been resolved:
mtd: spi-nor: sst: Fix SST write failure
'commit 18bcb4aa54ea ("mtd: spi-nor: ss
In the Linux kernel, the following vulnerability has been resolved:
mtd: spi-nor: sst: Fix SST write failure
'commit 18bcb4aa54ea ("mtd: spi-nor: sst: Factor out common write operation
to `sst_nor_write_data()`")' introduced a bug where only one byte of data
is written, regardless of the number of bytes passed to
sst_nor_write_data(), causing a kernel crash during the write operation.
Ensure the correct number of bytes are written as passed to
sst_nor_write_data().
Call trace:
[ 57.400180] ------------[ cut here ]------------
[ 57.404842] While writing 2 byte written 1 bytes
[ 57.409493] WARNING: CPU: 0 PID: 737 at drivers/mtd/spi-nor/sst.c:187 sst_nor_write_data+0x6c/0x74
[ 57.418464] Modules linked in:
[ 57.421517] CPU: 0 UID: 0 PID: 737 Comm: mtd_debug Not tainted 6.12.0-g5ad04afd91f
OSV
CVE-2025-21845: In the Linux kernel, the following vulnerability has been resolved: mtd: spi-nor: sst: Fix SST write failure 'commit 18bcb4aa54ea ("mtd: spi-nor: sst:
osv·2025-03-12·CVSS 5.5
CVE-2025-21845 [MEDIUM] CVE-2025-21845: In the Linux kernel, the following vulnerability has been resolved: mtd: spi-nor: sst: Fix SST write failure 'commit 18bcb4aa54ea ("mtd: spi-nor: sst:
In the Linux kernel, the following vulnerability has been resolved: mtd: spi-nor: sst: Fix SST write failure 'commit 18bcb4aa54ea ("mtd: spi-nor: sst: Factor out common write operation to `sst_nor_write_data()`")' introduced a bug where only one byte of data is written, regardless of the number of bytes passed to sst_nor_write_data(), causing a kernel crash during the write operation. Ensure the correct number of bytes are written as passed to sst_nor_write_data(). Call trace: [ 57.400180] ------------[ cut here ]------------ [ 57.404842] While writing 2 byte written 1 bytes [ 57.409493] WARNING: CPU: 0 PID: 737 at drivers/mtd/spi-nor/sst.c:187 sst_nor_write_data+0x6c/0x74 [ 57.418464] Modules linked in: [ 57.421517] CPU: 0 UID: 0 PID: 737 Comm: mtd_debug Not tainted 6.12.0-g5ad04afd91f9 #
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/539bd20352832b9244238a055eb169ccf1c41ff6https://git.kernel.org/stable/c/9553391f32f8c43e12fc7c04e1035160b5ea20bfhttps://git.kernel.org/stable/c/bb1accc7e0f688886f0c634f2e878b8ac4ee6a58https://git.kernel.org/stable/c/f791837015a0d20f584d0ed368393f119a00018fhttps://git.kernel.org/stable/c/f7c14993dc2f1eca661975c0ff90a6e2098ecd41
2025-03-12
Published