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Improper Resource Locking The advisory has been revoked - it doesn't affect any version of package rv  (opens in a new tab)

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  • Snyk IDSNYK-CENTOS10-RV-11251717
  • published30 Jul 2025
  • disclosed16 Apr 2025
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Introduced: 16 Apr 2025

CVE-2025-22053  (opens in a new tab)
CWE-413  (opens in a new tab)

Amendment

The Centos security team deemed this advisory irrelevant for Centos:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rv package and not the rv package as distributed by Centos.

In the Linux kernel, the following vulnerability has been resolved:

net: ibmveth: make veth_pool_store stop hanging

v2:

  • Created a single error handling unlock and exit in veth_pool_store
  • Greatly expanded commit message with previous explanatory-only text

Summary: Use rtnl_mutex to synchronize veth_pool_store with itself, ibmveth_close and ibmveth_open, preventing multiple calls in a row to napi_disable.

Background: Two (or more) threads could call veth_pool_store through writing to /sys/devices/vio/30000002/pool*/*. You can do this easily with a little shell script. This causes a hang.

I configured LOCKDEP, compiled ibmveth.c with DEBUG, and built a new kernel. I ran this test again and saw:

Setting pool0/active to 0
Setting pool1/active to 1
[   73.911067][ T4365] ibmveth 30000002 eth0: close starting
Setting pool1/active to 1
Setting pool1/active to 0
[   73.911367][ T4366] ibmveth 30000002 eth0: close starting
[   73.916056][ T4365] ibmveth 30000002 eth0: close complete
[   73.916064][ T4365] ibmveth 30000002 eth0: open starting
[  110.808564][  T712] systemd-journald[712]: Sent WATCHDOG=1 notification.
[  230.808495][  T712] systemd-journald[712]: Sent WATCHDOG=1 notification.
[  243.683786][  T123] INFO: task stress.sh:4365 blocked for more than 122 seconds.
[  243.683827][  T123]       Not tainted 6.14.0-01103-g2df0c02dab82-dirty #8
[  243.683833][  T123] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  243.683838][  T123] task:stress.sh       state:D stack:28096 pid:4365  tgid:4365  ppid:4364   task_flags:0x400040 flags:0x00042000
[  243.683852][  T123] Call Trace:
[  243.683857][  T123] [c00000000c38f690] [0000000000000001] 0x1 (unreliable)
[  243.683868][  T123] [c00000000c38f840] [c00000000001f908] __switch_to+0x318/0x4e0
[  243.683878][  T123] [c00000000c38f8a0] [c000000001549a70] __schedule+0x500/0x12a0
[  243.683888][  T123] [c00000000c38f9a0] [c00000000154a878] schedule+0x68/0x210
[  243.683896][  T123] [c00000000c38f9d0] [c00000000154ac80] schedule_preempt_disabled+0x30/0x50
[  243.683904][  T123] [c00000000c38fa00] [c00000000154dbb0] __mutex_lock+0x730/0x10f0
[  243.683913][  T123] [c00000000c38fb10] [c000000001154d40] napi_enable+0x30/0x60
[  243.683921][  T123] [c00000000c38fb40] [c000000000f4ae94] ibmveth_open+0x68/0x5dc
[  243.683928][  T123] [c00000000c38fbe0] [c000000000f4aa20] veth_pool_store+0x220/0x270
[  243.683936][  T123] [c00000000c38fc70] [c000000000826278] sysfs_kf_write+0x68/0xb0
[  243.683944][  T123] [c00000000c38fcb0] [c0000000008240b8] kernfs_fop_write_iter+0x198/0x2d0
[  243.683951][  T123] [c00000000c38fd00] [c00000000071b9ac] vfs_write+0x34c/0x650
[  243.683958][  T123] [c00000000c38fdc0] [c00000000071bea8] ksys_write+0x88/0x150
[  243.683966][  T123] [c00000000c38fe10] [c0000000000317f4] system_call_exception+0x124/0x340
[  243.683973][  T123] [c00000000c38fe50] [c00000000000d05c] system_call_vectored_common+0x15c/0x2ec
...
[  243.684087][  T123] Showing all locks held in the system:
[  243.684095][  T123] 1 lock held by khungtaskd/123:
[  243.684099][  T123]  #0: c00000000278e370 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x50/0x248
[  243.684114][  T123] 4 locks held by stress.sh/4365:
[  243.684119][  T123]  #0: c00000003a4cd3f8 (sb_writers#3){.+.+}-{0:0}, at: ksys_write+0x88/0x150
[  243.684132][  T123]  #1: c000000041aea888 (&of->mutex#2){+.+.}-{3:3}, at: kernfs_fop_write_iter+0x154/0x2d0
[  243.684143][  T123]  #2: c0000000366fb9a8 (kn->active#64){.+.+}-{0:0}, at: kernfs_fop_write_iter+0x160/0x2d0
[  243.684155][  T123]  #3: c000000035ff4cb8 (&dev->lock){+.+.}-{3:3}, at: napi_enable+0x30/0x60
[  243.684166][  T123] 5 locks held by stress.sh/4366:
[  243.684170][  T123]  #0: c00000003a4cd3f8 (sb_writers#3){.+.+}-{0:0}, at: ksys_write+0x88/0x150
[  243.

---truncated---