Answer in brief
CVE-2025-38229 records a Medium severity (CVSS 5.5) vulnerability in media: cxusb: no longer judge rbuf when the write fails. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:2.6.13:-:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:2.6.13:rc3:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:2.6.13:rc4:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:2.6.13:rc5:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:2.6.13:rc6:*:*:*:*:*:* | Not reported | Not reported |
| cpe:2.3:o:linux:linux_kernel:2.6.13:rc7:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=22c6d93a73105fddd58796d7cb10f5f90ee2a338 <77829a5f5a74026b888b0529628475b29750cef4 || >=22c6d93a73105fddd58796d7cb10f5f90ee2a338 <390b864e3281802109dfe56e508396683e125653 || >=22c6d93a73105fddd58796d7cb10f5f90ee2a338 <41807a5f67420464ac8ee7741504f6b5decb3b7c || >=22c6d93a73105fddd58796d7cb10f5f90ee2a338 <84eca597baa346f09b30accdaeca10ced3eeba2d || >=22c6d93a73105fddd58796d7cb10f5f90ee2a338 <04354c529c8246a38ae28f713fd6bfdc028113bc || >=22c6d93a73105fddd58796d7cb10f5f90ee2a338 <9bff888c92f5c25effbb876d22a793c2388c1ccc || >=22c6d93a73105fddd58796d7cb10f5f90ee2a338 <8b35b50b7e98d8e9a0a27257c8424448afae10de || >=22c6d93a73105fddd58796d7cb10f5f90ee2a338 <73fb3b92da84637e3817580fa205d48065924e15 | 77829a5f5a74026b888b0529628475b29750cef4, 390b864e3281802109dfe56e508396683e125653, 41807a5f67420464ac8ee7741504f6b5decb3b7c, 84eca597baa346f09b30accdaeca10ced3eeba2d, 04354c529c8246a38ae28f713fd6bfdc028113bc, 9bff888c92f5c25effbb876d22a793c2388c1ccc, 8b35b50b7e98d8e9a0a27257c8424448afae10de, 73fb3b92da84637e3817580fa205d48065924e15 |
| Linux/Linuxgeneric | 2.6.13 | Not reported |
Published upstream
Jul 4, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 5, 2026
In the Linux kernel, the following vulnerability has been resolved: media: cxusb: no longer judge rbuf when the write fails syzbot reported a uninit-value in cxusb_i2c_xfer. [1] Only when the write operation of usb_bulk_msg() in dvb_usb_generic_rw() succeeds and rlen is greater than 0, the read operation of usb_bulk_msg() will be executed to read rlen bytes of data from the dvb device into the rbuf. In this case, although rlen is 1, the write operation failed which resulted in the dvb read operation not being executed, and ultimately variable i was not initialized. [1] BUG: KMSAN: uninit-value in cxusb_gpio_tuner drivers/media/usb/dvb-usb/cxusb.c:124 [inline] BUG: KMSAN: uninit-value in cxusb_i2c_xfer+0x153a/0x1a60 drivers/media/usb/dvb-usb/cxusb.c:196 cxusb_gpio_tuner drivers/media/usb/dvb-usb/cxusb.c:124 [inline] cxusb_i2c_xfer+0x153a/0x1a60 drivers/media/usb/dvb-usb/cxusb.c:196 __i2c_transfer+0xe25/0x3150 drivers/i2c/i2c-core-base.c:-1 i2c_transfer+0x317/0x4a0 drivers/i2c/i2c-core-base.c:2315 i2c_transfer_buffer_flags+0x125/0x1e0 drivers/i2c/i2c-core-base.c:2343 i2c_master_send include/linux/i2c.h:109 [inline] i2cdev_write+0x210/0x280 drivers/i2c/i2c-dev.c:183 do_loop_readv_writev fs/read_write.c:848 [inline] vfs_writev+0x963/0x14e0 fs/read_write.c:1057 do_writev+0x247/0x5c0 fs/read_write.c:1101 __do_sys_writev fs/read_write.c:1169 [inline] __se_sys_writev fs/read_write.c:1166 [inline] __x64_sys_writev+0x98/0xe0 fs/read_write.c:1166 x64_sys_call+0x2229/0x3c80 arch/x86/include/generated/asm/syscalls_64.h:21 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x1e0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Quoted source text, attributed separately from HOL analysis.