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CVE-2024-50078

Bluetooth: Call iso_exit() on module unload PUBLISHED

Description (CNA)

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: Call iso_exit() on module unload If iso_init() has been called, iso_exit() must be called on module unload. Without that, the struct proto that iso_init() registered with proto_register() becomes invalid, which could cause unpredictable problems later. In my case, with CONFIG_LIST_HARDENED and CONFIG_BUG_ON_DATA_CORRUPTION enabled, loading the module again usually triggers this BUG(): list_add corruption. next->prev should be prev (ffffffffb5355fd0), but was 0000000000000068. (next=ffffffffc0a010d0). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:29! Oops: invalid opcode: 0000 [#1] PREEMPT SMP PTI CPU: 1 PID: 4159 Comm: modprobe Not tainted 6.10.11-4+bt2-ao-desktop #1 RIP: 0010:__list_add_valid_or_report+0x61/0xa0 ... __list_add_valid_or_report+0x61/0xa0 proto_register+0x299/0x320 hci_sock_init+0x16/0xc0 [bluetooth] bt_init+0x68/0xd0 [bluetooth] __pfx_bt_init+0x10/0x10 [bluetooth] do_one_initcall+0x80/0x2f0 do_init_module+0x8b/0x230 __do_sys_init_module+0x15f/0x190 do_syscall_64+0x68/0x110 ...

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected ccf74f2390d60a2f9a75ef496d2564abb478f46a before 4af7ba39a1a02e16ee8cd0d3b6c6657f51b8ad7a; affected ccf74f2390d60a2f9a75ef496d2564abb478f46a before 05f84d86169b2ebac185c5736a256823d42c425b; affected ccf74f2390d60a2f9a75ef496d2564abb478f46a before f905a7d95091e0d2605a3a1a157a9351f09ab2e1; affected ccf74f2390d60a2f9a75ef496d2564abb478f46a before d458cd1221e9e56da3b2cc5518ad3225caa91f20
Linux / Linuxaffected 6.0; unaffected 0 before 6.0; unaffected 6.1.114 through 6.1.*; unaffected 6.6.58 through 6.6.*; unaffected 6.11.5 through 6.11.*; unaffected 6.12 through *

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.

CVE

No English description supplied.