Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: net: mscc: ocelot: fix incorrect IFH SRC_PORT field in ocelot_ifh_set_basic() Packets injected by the CPU should have a SRC_PORT field equal to the CPU port module index in the Analyzer block (ocelot->num_phys_ports). The blamed commit copied the ocelot_ifh_set_basic() call incorrectly from ocelot_xmit_common() in net/dsa/tag_ocelot.c. Instead of calling with "x", it calls with BIT_ULL(x), but the field is not a port mask, but rather a single port index. [ side note: this is the technical debt of code duplication :( ] The error used to be silent and doesn't appear to have other user-visible manifestations, but with new changes in the packing library, it now fails loudly as follows: ------------[ cut here ]------------ Cannot store 0x40 inside bits 46-43 - will truncate sja1105 spi2.0: xmit timed out WARNING: CPU: 1 PID: 102 at lib/packing.c:98 __pack+0x90/0x198 sja1105 spi2.0: timed out polling for tstamp CPU: 1 UID: 0 PID: 102 Comm: felix_xmit Tainted: G W N 6.13.0-rc1-00372-gf706b85d972d-dirty #2605 Call trace: __pack+0x90/0x198 (P) __pack+0x90/0x198 (L) packing+0x78/0x98 ocelot_ifh_set_basic+0x260/0x368 ocelot_port_inject_frame+0xa8/0x250 felix_port_deferred_xmit+0x14c/0x258 kthread_worker_fn+0x134/0x350 kthread+0x114/0x138 The code path pertains to the ocelot switchdev driver and to the felix secondary DSA tag protocol, ocelot-8021q. Here seen with ocelot-8021q. The messenger (packing) is not really to blame, so fix the original commit instead.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 06bcb9032e05ad717f9fd0a6e2fd3ae7f430fa31 before 59c4ca8d8d7918eb6e2df91d2c254827264be309; affected ff7f554bbd75d5cbf00cded81d05147c6617e876 before 2f3c62ffe88116cd2a39cd73e01103535599970f; affected e1b9e80236c540fa85d76e2d510d1b38e1968c5d before a8836eae3288c351acd3b2743d2fad2a4ee2bd56; affected e1b9e80236c540fa85d76e2d510d1b38e1968c5d before 2d5df3a680ffdaf606baa10636bdb1daf757832e; affected be3a532167dd562ec38900c846e7ae6cc39aa2f1; affected 6.1.107 before 6.1.122; affected 6.6.48 before 6.6.68; affected 6.10.7 before 6.11 |
| Linux / Linux | affected 6.11; unaffected 0 before 6.11; unaffected 6.1.122 through 6.1.*; unaffected 6.6.68 through 6.6.*; unaffected 6.12.7 through 6.12.*; unaffected 6.13 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/59c4ca8d8d7918eb6e2df91d2c254827264be309
- https://git.kernel.org/stable/c/2f3c62ffe88116cd2a39cd73e01103535599970f
- https://git.kernel.org/stable/c/a8836eae3288c351acd3b2743d2fad2a4ee2bd56
- https://git.kernel.org/stable/c/2d5df3a680ffdaf606baa10636bdb1daf757832e
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.