CVE-2024-41068

Summary

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

s390/sclp: Fix sclp_init() cleanup on failure

If sclp_init() fails it only partially cleans up: if there are multiple failing calls to sclp_init() sclp_state_change_event will be added several times to sclp_reg_list, which results in the following warning:

————[ cut here ]———— list_add double add: new=000003ffe1598c10, prev=000003ffe1598bf0, next=000003ffe1598c10. WARNING: CPU: 0 PID: 1 at lib/list_debug.c:35 __list_add_valid_or_report+0xde/0xf8 CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.10.0-rc3 Krnl PSW : 0404c00180000000 000003ffe0d6076a (__list_add_valid_or_report+0xe2/0xf8) R:0 T:1 IO:0 EX:0 Key:0 M:1 W:0 P:0 AS:3 CC:0 PM:0 RI:0 EA:3 … Call Trace: [<000003ffe0d6076a>] __list_add_valid_or_report+0xe2/0xf8 ([<000003ffe0d60766>] __list_add_valid_or_report+0xde/0xf8) [<000003ffe0a8d37e>] sclp_init+0x40e/0x450 [<000003ffe00009f2>] do_one_initcall+0x42/0x1e0 [<000003ffe15b77a6>] do_initcalls+0x126/0x150 [<000003ffe15b7a0a>] kernel_init_freeable+0x1ba/0x1f8 [<000003ffe0d6650e>] kernel_init+0x2e/0x180 [<000003ffe000301c>] __ret_from_fork+0x3c/0x60 [<000003ffe0d759ca>] ret_from_fork+0xa/0x30

Fix this by removing sclp_state_change_event from sclp_reg_list when sclp_init() fails.

Affected Software

VendorProductVersion RangeStatus
LinuxLinux8bc00c04d87ee151fb8fe18ed7e7af8c785843f2 < cf521049fcd07071ed42dc9758fce7d5ee120ec6affected
LinuxLinux8bc00c04d87ee151fb8fe18ed7e7af8c785843f2 < 79b4be70d5a160969b805f638ac5b4efd0aac7a3affected
LinuxLinux8bc00c04d87ee151fb8fe18ed7e7af8c785843f2 < 0a31b3fdc7e735c4f8c65fe4339945c717ed6808affected
LinuxLinux8bc00c04d87ee151fb8fe18ed7e7af8c785843f2 < be0259796d0b76bbc7461e12c186814a9e58244caffected
LinuxLinux8bc00c04d87ee151fb8fe18ed7e7af8c785843f2 < 6434b33faaa063df500af355ee6c3942e0f8d982affected
LinuxLinux5.13affected
LinuxLinux0 < 5.13unaffected
LinuxLinux5.15.164 <= 5.15.*unaffected
LinuxLinux6.1.101 <= 6.1.*unaffected
LinuxLinux6.6.42 <= 6.6.*unaffected
LinuxLinux6.9.11 <= 6.9.*unaffected
LinuxLinux6.10 <= *unaffected

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

CISA ADP Vulnrichment

  • SSVC:
  • Exploitation: none
    • Automatable: no
    • Technical Impact: partial

References