CVE-2026-23357— can: mcp251x: fix deadlock in error path of mcp251x_open
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I. Basic Information for CVE-2026-23357
Vulnerability Information
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Vulnerability Title
can: mcp251x: fix deadlock in error path of mcp251x_open
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: can: mcp251x: fix deadlock in error path of mcp251x_open The mcp251x_open() function call free_irq() in its error path with the mpc_lock mutex held. But if an interrupt already occurred the interrupt handler will be waiting for the mpc_lock and free_irq() will deadlock waiting for the handler to finish. This issue is similar to the one fixed in commit 7dd9c26bd6cf ("can: mcp251x: fix deadlock if an interrupt occurs during mcp251x_open") but for the error path. To solve this issue move the call to free_irq() after the lock is released. Setting `priv->force_quit = 1` beforehand ensure that the IRQ handler will exit right away once it acquired the lock.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于mcp251x_open错误路径中持有锁时调用free_irq，可能导致死锁。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2026-23357
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Same Patch Batch · Linux · 2026-03-25 · 116 CVEs total
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| CVE-2026-23340 | 7.8 HIGH | net: sched: avoid qdisc_reset_all_tx_gt() vs dequeue race for lockless qdiscs |
| CVE-2026-23336 | 7.8 HIGH | wifi: cfg80211: cancel rfkill_block work in wiphy_unregister() |
| CVE-2026-23350 | 7.8 HIGH | drm/xe/queue: Call fini on exec queue creation fail |
| CVE-2026-23351 | 7.8 HIGH | netfilter: nft_set_pipapo: split gc into unlink and reclaim phase |
| CVE-2026-23317 | 7.8 HIGH | drm/vmwgfx: Return the correct value in vmw_translate_ptr functions |
| CVE-2026-23306 | 7.8 HIGH | scsi: pm8001: Fix use-after-free in pm8001_queue_command() |
| CVE-2026-23372 | 7.8 HIGH | nfc: rawsock: cancel tx_work before socket teardown |
| CVE-2026-23378 | 7.8 HIGH | net/sched: act_ife: Fix metalist update behavior |
| CVE-2026-23383 | 7.8 HIGH | bpf, arm64: Force 8-byte alignment for JIT buffer to prevent atomic tearing |
| CVE-2026-23391 | 7.8 HIGH | netfilter: xt_CT: drop pending enqueued packets on template removal |
| CVE-2026-23392 | 7.8 HIGH | netfilter: nf_tables: release flowtable after rcu grace period on error |
| CVE-2026-23393 | 7.8 HIGH | bridge: cfm: Fix race condition in peer_mep deletion |
| CVE-2026-23280 | 7.8 HIGH | accel/amdxdna: Prevent ubuf size overflow |
| CVE-2026-23288 | 7.8 HIGH | accel/amdxdna: Fix out-of-bounds memset in command slot handling |
| CVE-2026-23364 | 7.4 HIGH | ksmbd: Compare MACs in constant time |
| CVE-2026-23294 | 7.0 HIGH | bpf: Fix race in devmap on PREEMPT_RT |
| CVE-2026-23354 | x86/fred: Correct speculative safety in fred_extint() | |
| CVE-2026-23356 | drbd: fix "LOGIC BUG" in drbd_al_begin_io_nonblock() |
Showing top 20 of 116 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
Same vendor: Linux
- CVE-2026-43500
rxrpc: Also unshare DATA/RESPONSE packets when paged frags a - CVE-2026-43475
scsi: storvsc: Fix scheduling while atomic on PREEMPT_RT - CVE-2026-43474
fs: init flags_valid before calling vfs_fileattr_get - CVE-2026-43473
scsi: mpi3mr: Add NULL checks when resetting request and rep - CVE-2026-43472
unshare: fix unshare_fs() handling
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