cbcvebase.
CVE-2023-54274
published 2025-12-30

CVE-2023-54274: In the Linux kernel, the following vulnerability has been resolved: RDMA/srpt: Add a check for valid 'mad_agent' pointer When unregistering MAD agent, srpt…

PriorityP425medium5.8
EPSS
0.18%
8.1th percentile
In the Linux kernel, the following vulnerability has been resolved: RDMA/srpt: Add a check for valid 'mad_agent' pointer When unregistering MAD agent, srpt module has a non-null check for 'mad_agent' pointer before invoking ib_unregister_mad_agent(). This check can pass if 'mad_agent' variable holds an error value. The 'mad_agent' can have an error value for a short window when srpt_add_one() and srpt_remove_one() is executed simultaneously. In srpt module, added a valid pointer check for 'sport->mad_agent' before unregistering MAD agent. This issue can hit when RoCE driver unregisters ib_device Stack Trace: BUG: kernel NULL pointer dereference, address: 000000000000004d PGD 145003067 P4D 145003067 PUD 2324fe067 PMD 0 Oops: 0002 [#1] PREEMPT SMP NOPTI CPU: 10 PID: 4459 Comm: kworker/u80:0 Kdump: loaded Tainted: P Hardware name: Dell Inc. PowerEdge R640/06NR82, BIOS 2.5.4 01/13/2020 Workqueue: bnxt_re bnxt_re_task [bnxt_re] RIP: 0010:_raw_spin_lock_irqsave+0x19/0x40 Call Trace: ib_unregister_mad_agent+0x46/0x2f0 [ib_core] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready ? __schedule+0x20b/0x560 srpt_unregister_mad_agent+0x93/0xd0 [ib_srpt] srpt_remove_one+0x20/0x150 [ib_srpt] remove_client_context+0x88/0xd0 [ib_core] bond0: (slave p2p1): link status definitely up, 100000 Mbps full duplex disable_device+0x8a/0x160 [ib_core] bond0: active interface up! ? kernfs_name_hash+0x12/0x80 (NULL device *): Bonding Info Received: rdev: 000000006c0b8247 __ib_unregister_device+0x42/0xb0 [ib_core] (NULL device *): Master: mode: 4 num_slaves:2 ib_unregister_device+0x22/0x30 [ib_core] (NULL device *): Slave: id: 105069936 name:p2p1 link:0 state:0 bnxt_re_stopqps_and_ib_uninit+0x83/0x90 [bnxt_re] bnxt_re_alloc_lag+0x12e/0x4e0 [bnxt_re]

Affected

17 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.37-1 (bookworm)linux 6.1.37-1 (bookworm)
linuxlinux
linuxlinux>= a42d985bd5b234da8b61347a78dc3057bf7bb94d < 8ec6acdb9b6a80eeb13e778dfedb5d72a88f14fe8ec6acdb9b6a80eeb13e778dfedb5d72a88f14fe
linuxlinux>= a42d985bd5b234da8b61347a78dc3057bf7bb94d < 00cc21e32ea1b8ebbabf5d645da9378d986bf8ba00cc21e32ea1b8ebbabf5d645da9378d986bf8ba
linuxlinux>= a42d985bd5b234da8b61347a78dc3057bf7bb94d < 4323aaedeba32076e652aad056afd7885bb96bb74323aaedeba32076e652aad056afd7885bb96bb7
linuxlinux>= a42d985bd5b234da8b61347a78dc3057bf7bb94d < 5f6ef2a574b0e0e0ea46ed0022575442df9d0bf95f6ef2a574b0e0e0ea46ed0022575442df9d0bf9
linuxlinux>= a42d985bd5b234da8b61347a78dc3057bf7bb94d < b713623bfef8cb1df9c769a3887fa10db63d1c54b713623bfef8cb1df9c769a3887fa10db63d1c54
linuxlinux>= a42d985bd5b234da8b61347a78dc3057bf7bb94d < eca5cd9474cd26d62f9756f536e2e656d3f62f3aeca5cd9474cd26d62f9756f536e2e656d3f62f3a
linuxlinux_kernel>= 0 < 5.10.191-15.10.191-1
linuxlinux_kernel>= 0 < 6.1.37-16.1.37-1
linuxlinux_kernel>= 0 < 6.3.7-16.3.7-1
linuxlinux_kernel>= 0 < 6.3.7-16.3.7-1
linuxlinux_kernel>= 3.3.0 < 5.10.1805.10.180
linuxlinux_kernel>= 5.11.0 < 5.15.1115.15.111
linuxlinux_kernel>= 5.16.0 < 6.1.286.1.28
linuxlinux_kernel>= 6.2.0 < 6.2.156.2.15
linuxlinux_kernel>= 6.3.0 < 6.3.26.3.2
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