Answer in brief
CVE-2026-68162 records a High severity (CVSS 7.8) vulnerability in sctp: avoid auth_enable sysctl UAF during netns teardown. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), 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 7.8. 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), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=10c869a52f266e40f548cc3c565d14930a5edafc <19573dcddb8819fd68d6cd1f916c1c99c3fa4ff4 || >=7ec30c54f339c640aa7e49d7e9f7bbed6bd42bf6 <66700c0719675e0e118ae83b2d7168dacd69dd3d || >=c184bc621e3cef03ac9ba81a50dda2dae6a21d36 <626bda8cfe43dff19a9833ff6ba055a817b5455c || >=15649fd5415eda664ef35780c2013adeb5d9c695 <be6aae9d1b91c603adb35872d37d40e83daf8758 || >=15649fd5415eda664ef35780c2013adeb5d9c695 <a50e73488e0bbdd262b3be3c9a1d8dd078382381 || >=15649fd5415eda664ef35780c2013adeb5d9c695 <f8d5e7846025f4ab15a461235f8ebae9094a361a || dc583e7e5f8515ca489c0df28e4362a70eade382 || bd2a2939423566c654545fa3e96a656662a0af9e || 1b67030d39f2b00f94ac1f0af11ba6657589e4d3 || >=5.4.290 <5.4.292 || >=6.6.72 <6.6.151 || >=6.12.10 <6.12.101 || >=5.10.234 <5.11 || >=5.15.177 <5.16 || >=6.1.125 <6.2 | 19573dcddb8819fd68d6cd1f916c1c99c3fa4ff4, 66700c0719675e0e118ae83b2d7168dacd69dd3d, 626bda8cfe43dff19a9833ff6ba055a817b5455c, be6aae9d1b91c603adb35872d37d40e83daf8758, a50e73488e0bbdd262b3be3c9a1d8dd078382381, f8d5e7846025f4ab15a461235f8ebae9094a361a, 5.4.292, 6.6.151, 6.12.101, 5.11, 5.16, 6.2 |
| Linux/Linuxgeneric | 6.13 | Not reported |
| Linux/Linuxgeneric | >=10c869a52f266e40f548cc3c565d14930a5edafc <19573dcddb8819fd68d6cd1f916c1c99c3fa4ff4 || >=dc583e7e5f8515ca489c0df28e4362a70eade382 <ceb7190b5c873d4a1267a1600c5aa52c600e929f || >=bd2a2939423566c654545fa3e96a656662a0af9e <fd66854a22661929245f3d2b244c432bc8b1a150 || >=1b67030d39f2b00f94ac1f0af11ba6657589e4d3 <158f3cc332dc53f43ec20060233d7c3cecd6d912 || >=7ec30c54f339c640aa7e49d7e9f7bbed6bd42bf6 <66700c0719675e0e118ae83b2d7168dacd69dd3d || >=c184bc621e3cef03ac9ba81a50dda2dae6a21d36 <626bda8cfe43dff19a9833ff6ba055a817b5455c || >=15649fd5415eda664ef35780c2013adeb5d9c695 <be6aae9d1b91c603adb35872d37d40e83daf8758 || >=15649fd5415eda664ef35780c2013adeb5d9c695 <a50e73488e0bbdd262b3be3c9a1d8dd078382381 || >=15649fd5415eda664ef35780c2013adeb5d9c695 <f8d5e7846025f4ab15a461235f8ebae9094a361a || >=5.4.290 <5.4.292 || >=5.10.234 <5.10.266 || >=5.15.177 <5.15.217 || >=6.1.125 <6.1.184 || >=6.6.72 <6.6.151 || >=6.12.10 <6.12.101 | 19573dcddb8819fd68d6cd1f916c1c99c3fa4ff4, ceb7190b5c873d4a1267a1600c5aa52c600e929f, fd66854a22661929245f3d2b244c432bc8b1a150, 158f3cc332dc53f43ec20060233d7c3cecd6d912, 66700c0719675e0e118ae83b2d7168dacd69dd3d, 626bda8cfe43dff19a9833ff6ba055a817b5455c, be6aae9d1b91c603adb35872d37d40e83daf8758, a50e73488e0bbdd262b3be3c9a1d8dd078382381, f8d5e7846025f4ab15a461235f8ebae9094a361a, 5.4.292, 5.10.266, 5.15.217, 6.1.184, 6.6.151, 6.12.101 |
Published upstream
Aug 10, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 23, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 10, 2026
In the Linux kernel, the following vulnerability has been resolved: sctp: avoid auth_enable sysctl UAF during netns teardown proc_sctp_do_auth() updates the SCTP control socket after changing net.sctp.auth_enable. The handler gets the per-net SCTP state from ctl->data, so an already opened sysctl file can still target a network namespace while that namespace is being torn down. SCTP previously registered its per-net sysctls from sctp_defaults_init(), while the control socket is created later from sctp_ctrlsock_init(). This exposed a window during initialization where auth_enable was writable before net->sctp.ctl_sock existed, and a teardown window where auth_enable stayed writable after inet_ctl_sock_destroy() had released the control socket. Move the per-net SCTP sysctl registration into sctp_ctrlsock_init() after sctp_ctl_sock_init() succeeds, and unregister the sysctl table before destroying the control socket in sctp_ctrlsock_exit(). If sysctl registration fails after the control socket was created, destroy the control socket in the same init path. Make sctp_sysctl_net_unregister() tolerate a missing header and clear the saved pointer so init-error and exit paths can safely share the unregister helper.
Quoted source text, attributed separately from HOL analysis.