Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: RDMA/srpt: Fix srpt_alloc_rw_ctxs() unwind counters When srpt_alloc_rw_ctxs() fails partway through a multi-buffer indirect descriptor, the unwind path destroys RDMA contexts but leaves stale n_rw_ctx and n_rdma values (and a dangling rw_ctxs pointer). Later sq_wr_avail accounting in srpt_queue_response() or srpt_write_pending() can then subtract the wrong number of send queue credits. Reset the counters and clear rw_ctxs after freeing the heap allocation before returning an error.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected b99f8e4d7bcd3bfbb3cd965918523299370d0cb2 before af00051dbc9f467d4840ec709680660a3f8990fa; affected b99f8e4d7bcd3bfbb3cd965918523299370d0cb2 before 717ab4d0614e9446bf8e2de6229464499e4008d6; affected b99f8e4d7bcd3bfbb3cd965918523299370d0cb2 before f1f2252da52cdda912da9993f39f58783b01b38f; affected b99f8e4d7bcd3bfbb3cd965918523299370d0cb2 before f65f45dfa1e6e2eaa9e11c8b8ce8857799cb189d; affected b99f8e4d7bcd3bfbb3cd965918523299370d0cb2 before be1478849e1abb1e12dc12e14cdbf800cc6fa99a; affected b99f8e4d7bcd3bfbb3cd965918523299370d0cb2 before af073bd245180393bcb15d33d3990a6bdc32593a; affected b99f8e4d7bcd3bfbb3cd965918523299370d0cb2 before bd02d644bd19a2795c018635d273d91e45d2bb95; affected b99f8e4d7bcd3bfbb3cd965918523299370d0cb2 before b38f98e176050850f41bb6415f3a71400056623e |
| Linux / Linux | affected 4.7; unaffected 0 before 4.7; unaffected 5.10.270 through 5.10.*; unaffected 5.15.221 through 5.15.*; unaffected 6.1.188 through 6.1.*; unaffected 6.6.157 through 6.6.*; unaffected 6.12.110 through 6.12.*; unaffected 6.18.52 through 6.18.*; unaffected 7.2.6 through 7.2.*; unaffected 7.3 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/af00051dbc9f467d4840ec709680660a3f8990fa
- https://git.kernel.org/stable/c/717ab4d0614e9446bf8e2de6229464499e4008d6
- https://git.kernel.org/stable/c/f1f2252da52cdda912da9993f39f58783b01b38f
- https://git.kernel.org/stable/c/f65f45dfa1e6e2eaa9e11c8b8ce8857799cb189d
- https://git.kernel.org/stable/c/be1478849e1abb1e12dc12e14cdbf800cc6fa99a
- https://git.kernel.org/stable/c/af073bd245180393bcb15d33d3990a6bdc32593a
- https://git.kernel.org/stable/c/bd02d644bd19a2795c018635d273d91e45d2bb95
- https://git.kernel.org/stable/c/b38f98e176050850f41bb6415f3a71400056623e