CVE-2025-21916
- Source
- https://cve.org/CVERecord?id=CVE-2025-21916
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-21916.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-21916
- Downstream
BELL (1)
CLSA (1)
ECHO (1)
MINI (1)
OESA (2)
SUSE (11)
UBUNTU (1)
- Related
- Published
- 2025-04-01T15:40:52Z
- Modified
- 2026-10-20T10:31:08Z
- Summary
- usb: atm: cxacru: fix a flaw in existing endpoint checks
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
usb: atm: cxacru: fix a flaw in existing endpoint checks
Syzbot once again identified a flaw in usb endpoint checking, see [1]. This time the issue stems from a commit authored by me (2eabb655a968 ("usb: atm: cxacru: fix endpoint checking in cxacru_bind()")).
While using usb_find_common_endpoints() may usually be enough to discard devices with wrong endpoints, in this case one needs more than just finding and identifying the sufficient number of endpoints of correct types - one needs to check the endpoint's address as well.
Since cxacru_bind() fills URBs with CXACRU_EP_CMD address in mind, switch the endpoint verification approach to usb_check_XXX_endpoints() instead to fix incomplete ep testing.
[1] Syzbot report: usb 5-1: BOGUS urb xfer, pipe 3 != type 1 WARNING: CPU: 0 PID: 1378 at drivers/usb/core/urb.c:504 usb_submit_urb+0xc4e/0x18c0 drivers/usb/core/urb.c:503 ... RIP: 0010:usb_submit_urb+0xc4e/0x18c0 drivers/usb/core/urb.c:503 ... Call Trace: cxacru_cm+0x3c8/0xe50 drivers/usb/atm/cxacru.c:649 cxacru_card_status drivers/usb/atm/cxacru.c:760 [inline] cxacru_bind+0xcf9/0x1150 drivers/usb/atm/cxacru.c:1223 usbatm_usb_probe+0x314/0x1d30 drivers/usb/atm/usbatm.c:1058 cxacru_usb_probe+0x184/0x220 drivers/usb/atm/cxacru.c:1377 usb_probe_interface+0x641/0xbb0 drivers/usb/core/driver.c:396 really_probe+0x2b9/0xad0 drivers/base/dd.c:658 __driver_probe_device+0x1a2/0x390 drivers/base/dd.c:800 driver_probe_device+0x50/0x430 drivers/base/dd.c:830 ...
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21916.json" }- References
-
- https://git.kernel.org/stable/c/197e78076c5ecd895f109158c4ea2954b9919af6
- https://git.kernel.org/stable/c/319529e0356bd904528c64647725a2272d297c83
- https://git.kernel.org/stable/c/903b80c21458bb1e34c3a78c5fdc553821e357f8
- https://git.kernel.org/stable/c/a0475a885d69849b1ade38add6d64338dfa83a8f
- https://git.kernel.org/stable/c/bf4409f84023b52b5e9b36c0a071a121eee42138
- https://git.kernel.org/stable/c/c90aad369899a607cfbc002bebeafd51e31900cd
- https://git.kernel.org/stable/c/cfc295f7cccf66cbd5123416bcf1bee2e1bd37de
- https://git.kernel.org/stable/c/dcd592ab9dd8a2bfc36e75583b9006db2a77ec24
- https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
- https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21916.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-21916
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced23926d316d2836315cb113569f91393266eb5b47Fixeddcd592ab9dd8a2bfc36e75583b9006db2a77ec24
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced75ddbf776dd04a09fb9e5267ead5d0c989f84506Fixed319529e0356bd904528c64647725a2272d297c83
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced1aac4be1aaa5177506219f01dce5e29194e5e95aFixedbf4409f84023b52b5e9b36c0a071a121eee42138
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5584c776a1af7807ca815ee6265f2c1429fc5727Fixed197e78076c5ecd895f109158c4ea2954b9919af6
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedf536f09eb45e4de8d1b9accee9d992aa1846f1d4Fixeda0475a885d69849b1ade38add6d64338dfa83a8f
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced2eabb655a968b862bc0c31629a09f0fbf3c80d51Fixedcfc295f7cccf66cbd5123416bcf1bee2e1bd37deFixed903b80c21458bb1e34c3a78c5fdc553821e357f8Fixedc90aad369899a607cfbc002bebeafd51e31900cd
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5.4.279Fixed5.4.291
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5.10.221Fixed5.10.235
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5.15.162Fixed5.15.179
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.1.97Fixed6.1.131
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.6.37Fixed6.6.83
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced4.19.317Fixed4.20
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced6.9.8Fixed6.10
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced5159a81924311c1ec786ad9fdef784ead8676a6a
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedac9007520e392541a29daebaae8b9109007bc781
Affected versions
v4.*
v5.*
v6.*
Linux / Kernel
Package
- Name
- Kernel
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0 Unknown introduced version / All previous versions are affectedFixed5.4.291
- Type
- ECOSYSTEM
- Events
-
Introduced5.5.0Fixed5.10.235
- Type
- ECOSYSTEM
- Events
-
Introduced5.11.0Fixed5.15.179
- Type
- ECOSYSTEM
- Events
-
Introduced5.16.0Fixed6.1.131
- Type
- ECOSYSTEM
- Events
-
Introduced6.2.0Fixed6.6.83
- Type
- ECOSYSTEM
- Events
-
Introduced6.7.0Fixed6.12.19
- Type
- ECOSYSTEM
- Events
-
Introduced6.10.0Fixed6.13.7