CVE-2025-68379

*** Pendiente de traducción *** In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> RDMA/rxe: Fix null deref on srq-&gt;rq.queue after resize failure<br /> <br /> A NULL pointer dereference can occur in rxe_srq_chk_attr() when<br /> ibv_modify_srq() is invoked twice in succession under certain error<br /> conditions. The first call may fail in rxe_queue_resize(), which leads<br /> rxe_srq_from_attr() to set srq-&gt;rq.queue = NULL. The second call then<br /> triggers a crash (null deref) when accessing<br /> srq-&gt;rq.queue-&gt;buf-&gt;index_mask.<br /> <br /> Call Trace:<br /> <br /> rxe_modify_srq+0x170/0x480 [rdma_rxe]<br /> ? __pfx_rxe_modify_srq+0x10/0x10 [rdma_rxe]<br /> ? uverbs_try_lock_object+0x4f/0xa0 [ib_uverbs]<br /> ? rdma_lookup_get_uobject+0x1f0/0x380 [ib_uverbs]<br /> ib_uverbs_modify_srq+0x204/0x290 [ib_uverbs]<br /> ? __pfx_ib_uverbs_modify_srq+0x10/0x10 [ib_uverbs]<br /> ? tryinc_node_nr_active+0xe6/0x150<br /> ? uverbs_fill_udata+0xed/0x4f0 [ib_uverbs]<br /> ib_uverbs_handler_UVERBS_METHOD_INVOKE_WRITE+0x2c0/0x470 [ib_uverbs]<br /> ? __pfx_ib_uverbs_handler_UVERBS_METHOD_INVOKE_WRITE+0x10/0x10 [ib_uverbs]<br /> ? uverbs_fill_udata+0xed/0x4f0 [ib_uverbs]<br /> ib_uverbs_run_method+0x55a/0x6e0 [ib_uverbs]<br /> ? __pfx_ib_uverbs_handler_UVERBS_METHOD_INVOKE_WRITE+0x10/0x10 [ib_uverbs]<br /> ib_uverbs_cmd_verbs+0x54d/0x800 [ib_uverbs]<br /> ? __pfx_ib_uverbs_cmd_verbs+0x10/0x10 [ib_uverbs]<br /> ? __pfx___raw_spin_lock_irqsave+0x10/0x10<br /> ? __pfx_do_vfs_ioctl+0x10/0x10<br /> ? ioctl_has_perm.constprop.0.isra.0+0x2c7/0x4c0<br /> ? __pfx_ioctl_has_perm.constprop.0.isra.0+0x10/0x10<br /> ib_uverbs_ioctl+0x13e/0x220 [ib_uverbs]<br /> ? __pfx_ib_uverbs_ioctl+0x10/0x10 [ib_uverbs]<br /> __x64_sys_ioctl+0x138/0x1c0<br /> do_syscall_64+0x82/0x250<br /> ? fdget_pos+0x58/0x4c0<br /> ? ksys_write+0xf3/0x1c0<br /> ? __pfx_ksys_write+0x10/0x10<br /> ? do_syscall_64+0xc8/0x250<br /> ? __pfx_vm_mmap_pgoff+0x10/0x10<br /> ? fget+0x173/0x230<br /> ? fput+0x2a/0x80<br /> ? ksys_mmap_pgoff+0x224/0x4c0<br /> ? do_syscall_64+0xc8/0x250<br /> ? do_user_addr_fault+0x37b/0xfe0<br /> ? clear_bhb_loop+0x50/0xa0<br /> ? clear_bhb_loop+0x50/0xa0<br /> ? clear_bhb_loop+0x50/0xa0<br /> entry_SYSCALL_64_after_hwframe+0x76/0x7e