Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: RDMA/rtrs: Ensure 'ib_sge list' is accessible Move the declaration of the 'ib_sge list' variable outside the 'always_invalidate' block to ensure it remains accessible for use throughout the function. Previously, 'ib_sge list' was declared within the 'always_invalidate' block, limiting its accessibility, then caused a 'BUG: kernel NULL pointer dereference'[1]. ? __die_body.cold+0x19/0x27 ? page_fault_oops+0x15a/0x2d0 ? search_module_extables+0x19/0x60 ? search_bpf_extables+0x5f/0x80 ? exc_page_fault+0x7e/0x180 ? asm_exc_page_fault+0x26/0x30 ? memcpy_orig+0xd5/0x140 rxe_mr_copy+0x1c3/0x200 [rdma_rxe] ? rxe_pool_get_index+0x4b/0x80 [rdma_rxe] copy_data+0xa5/0x230 [rdma_rxe] rxe_requester+0xd9b/0xf70 [rdma_rxe] ? finish_task_switch.isra.0+0x99/0x2e0 rxe_sender+0x13/0x40 [rdma_rxe] do_task+0x68/0x1e0 [rdma_rxe] process_one_work+0x177/0x330 worker_thread+0x252/0x390 ? __pfx_worker_thread+0x10/0x10 This change ensures the variable is available for subsequent operations that require it. [1] https://lore.kernel.org/linux-rdma/6a1f3e8f-deb0-49f9-bc69-a9b03ecfcda7@fujitsu.com/
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 9cb837480424e78ed585376f944088246685aec3 before 7eaa71f56a6f7ab87957213472dc6d4055862722; affected 9cb837480424e78ed585376f944088246685aec3 before 143378075904e78b3b2a810099bcc3b3d82d762f; affected 9cb837480424e78ed585376f944088246685aec3 before 32e1e748a85bd52b20b3857d80fd166d22fa455a; affected 9cb837480424e78ed585376f944088246685aec3 before b238f61cc394d5fef27b26d7d9aa383ebfddabb0; affected 9cb837480424e78ed585376f944088246685aec3 before 6ffb5c1885195ae5211a12b4acd2d51843ca41b0; affected 9cb837480424e78ed585376f944088246685aec3 before fb514b31395946022f13a08e06a435f53cf9e8b3 |
| Linux / Linux | affected 5.8; unaffected 0 before 5.8; unaffected 5.10.233 through 5.10.*; unaffected 5.15.176 through 5.15.*; unaffected 6.1.124 through 6.1.*; unaffected 6.6.70 through 6.6.*; unaffected 6.12.9 through 6.12.*; unaffected 6.13 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/7eaa71f56a6f7ab87957213472dc6d4055862722
- https://git.kernel.org/stable/c/143378075904e78b3b2a810099bcc3b3d82d762f
- https://git.kernel.org/stable/c/32e1e748a85bd52b20b3857d80fd166d22fa455a
- https://git.kernel.org/stable/c/b238f61cc394d5fef27b26d7d9aa383ebfddabb0
- https://git.kernel.org/stable/c/6ffb5c1885195ae5211a12b4acd2d51843ca41b0
- https://git.kernel.org/stable/c/fb514b31395946022f13a08e06a435f53cf9e8b3
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.