Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: io_uring: fix link timeout refs WARNING: CPU: 0 PID: 10242 at lib/refcount.c:28 refcount_warn_saturate+0x15b/0x1a0 lib/refcount.c:28 RIP: 0010:refcount_warn_saturate+0x15b/0x1a0 lib/refcount.c:28 Call Trace: __refcount_sub_and_test include/linux/refcount.h:283 [inline] __refcount_dec_and_test include/linux/refcount.h:315 [inline] refcount_dec_and_test include/linux/refcount.h:333 [inline] io_put_req fs/io_uring.c:2140 [inline] io_queue_linked_timeout fs/io_uring.c:6300 [inline] __io_queue_sqe+0xbef/0xec0 fs/io_uring.c:6354 io_submit_sqe fs/io_uring.c:6534 [inline] io_submit_sqes+0x2bbd/0x7c50 fs/io_uring.c:6660 __do_sys_io_uring_enter fs/io_uring.c:9240 [inline] __se_sys_io_uring_enter+0x256/0x1d60 fs/io_uring.c:9182 io_link_timeout_fn() should put only one reference of the linked timeout request, however in case of racing with the master request's completion first io_req_complete() puts one and then io_put_req_deferred() is called.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 1c20e9040f49687ba2ccc2ffd4411351a6c2ebff before 0b2a990e5d2f76d020cb840c456e6ec5f0c27530; affected 1c20e9040f49687ba2ccc2ffd4411351a6c2ebff before 6f5d7a45f58d3abe3a936de1441b8d6318f978ff; affected 9ae1f8dd372e0e4c020b345cf9e09f519265e981 before 876808dba2ff7509bdd7f230c4f374a0caf4f410; affected 9ae1f8dd372e0e4c020b345cf9e09f519265e981 before ff4a96ba5c8f9b266706280ff8021d2ef3f17e86; affected 9ae1f8dd372e0e4c020b345cf9e09f519265e981 before a298232ee6b9a1d5d732aa497ff8be0d45b5bd82; affected 567c81912cec641db75ac6cb64c63f8367c97d19; affected 5.10.26 before 5.10.43; affected 5.10.26 before 5.10.55; affected 5.11.6 before 5.12 |
| Linux / Linux | affected 5.12; unaffected 0 before 5.12; unaffected 5.10.43 through 5.10.*; unaffected 5.10.55 through 5.10.*; unaffected 5.12.10 through 5.12.*; unaffected 5.12.19 through 5.12.*; unaffected 5.13 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/0b2a990e5d2f76d020cb840c456e6ec5f0c27530
- https://git.kernel.org/stable/c/6f5d7a45f58d3abe3a936de1441b8d6318f978ff
- https://git.kernel.org/stable/c/876808dba2ff7509bdd7f230c4f374a0caf4f410
- https://git.kernel.org/stable/c/ff4a96ba5c8f9b266706280ff8021d2ef3f17e86
- https://git.kernel.org/stable/c/a298232ee6b9a1d5d732aa497ff8be0d45b5bd82
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
- https://git.kernel.org/stable/c/0b2a990e5d2f76d020cb840c456e6ec5f0c27530
- https://git.kernel.org/stable/c/6f5d7a45f58d3abe3a936de1441b8d6318f978ff
- https://git.kernel.org/stable/c/876808dba2ff7509bdd7f230c4f374a0caf4f410
- https://git.kernel.org/stable/c/ff4a96ba5c8f9b266706280ff8021d2ef3f17e86
- https://git.kernel.org/stable/c/a298232ee6b9a1d5d732aa497ff8be0d45b5bd82