CVE-2025-38379

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> smb: client: fix warning when reconnecting channel<br /> <br /> When reconnecting a channel in smb2_reconnect_server(), a dummy tcon<br /> is passed down to smb2_reconnect() with -&gt;query_interface<br /> uninitialized, so we can&amp;#39;t call queue_delayed_work() on it.<br /> <br /> Fix the following warning by ensuring that we&amp;#39;re queueing the delayed<br /> worker from correct tcon.<br /> <br /> WARNING: CPU: 4 PID: 1126 at kernel/workqueue.c:2498 __queue_delayed_work+0x1d2/0x200<br /> Modules linked in: cifs cifs_arc4 nls_ucs2_utils cifs_md4 [last unloaded: cifs]<br /> CPU: 4 UID: 0 PID: 1126 Comm: kworker/4:0 Not tainted 6.16.0-rc3 #5 PREEMPT(voluntary)<br /> Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-4.fc42 04/01/2014<br /> Workqueue: cifsiod smb2_reconnect_server [cifs]<br /> RIP: 0010:__queue_delayed_work+0x1d2/0x200<br /> Code: 41 5e 41 5f e9 7f ee ff ff 90 0f 0b 90 e9 5d ff ff ff bf 02 00<br /> 00 00 e8 6c f3 07 00 89 c3 eb bd 90 0f 0b 90 e9 57 f&gt; 0b 90 e9 65 fe<br /> ff ff 90 0f 0b 90 e9 72 fe ff ff 90 0f 0b 90 e9<br /> RSP: 0018:ffffc900014afad8 EFLAGS: 00010003<br /> RAX: 0000000000000000 RBX: ffff888124d99988 RCX: ffffffff81399cc1<br /> RDX: dffffc0000000000 RSI: ffff888114326e00 RDI: ffff888124d999f0<br /> RBP: 000000000000ea60 R08: 0000000000000001 R09: ffffed10249b3331<br /> R10: ffff888124d9998f R11: 0000000000000004 R12: 0000000000000040<br /> R13: ffff888114326e00 R14: ffff888124d999d8 R15: ffff888114939020<br /> FS: 0000000000000000(0000) GS:ffff88829f7fe000(0000) knlGS:0000000000000000<br /> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033<br /> CR2: 00007ffe7a2b4038 CR3: 0000000120a6f000 CR4: 0000000000750ef0<br /> PKRU: 55555554<br /> Call Trace:<br /> <br /> queue_delayed_work_on+0xb4/0xc0<br /> smb2_reconnect+0xb22/0xf50 [cifs]<br /> smb2_reconnect_server+0x413/0xd40 [cifs]<br /> ? __pfx_smb2_reconnect_server+0x10/0x10 [cifs]<br /> ? local_clock_noinstr+0xd/0xd0<br /> ? local_clock+0x15/0x30<br /> ? lock_release+0x29b/0x390<br /> process_one_work+0x4c5/0xa10<br /> ? __pfx_process_one_work+0x10/0x10<br /> ? __list_add_valid_or_report+0x37/0x120<br /> worker_thread+0x2f1/0x5a0<br /> ? __kthread_parkme+0xde/0x100<br /> ? __pfx_worker_thread+0x10/0x10<br /> kthread+0x1fe/0x380<br /> ? kthread+0x10f/0x380<br /> ? __pfx_kthread+0x10/0x10<br /> ? local_clock_noinstr+0xd/0xd0<br /> ? ret_from_fork+0x1b/0x1f0<br /> ? local_clock+0x15/0x30<br /> ? lock_release+0x29b/0x390<br /> ? rcu_is_watching+0x20/0x50<br /> ? __pfx_kthread+0x10/0x10<br /> ret_from_fork+0x15b/0x1f0<br /> ? __pfx_kthread+0x10/0x10<br /> ret_from_fork_asm+0x1a/0x30<br /> <br /> irq event stamp: 1116206<br /> hardirqs last enabled at (1116205): [] __up_console_sem+0x52/0x60<br /> hardirqs last disabled at (1116206): [] queue_delayed_work_on+0x6e/0xc0<br /> softirqs last enabled at (1116138): [] __smb_send_rqst+0x42d/0x950 [cifs]<br /> softirqs last disabled at (1116136): [] release_sock+0x21/0xf0