{"id":"CVE-2024-57903","summary":"net: restrict SO_REUSEPORT to inet sockets","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet: restrict SO_REUSEPORT to inet sockets\n\nAfter blamed commit, crypto sockets could accidentally be destroyed\nfrom RCU call back, as spotted by zyzbot [1].\n\nTrying to acquire a mutex in RCU callback is not allowed.\n\nRestrict SO_REUSEPORT socket option to inet sockets.\n\nv1 of this patch supported TCP, UDP and SCTP sockets,\nbut fcnal-test.sh test needed RAW and ICMP support.\n\n[1]\nBUG: sleeping function called from invalid context at kernel/locking/mutex.c:562\nin_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 24, name: ksoftirqd/1\npreempt_count: 100, expected: 0\nRCU nest depth: 0, expected: 0\n1 lock held by ksoftirqd/1/24:\n  #0: ffffffff8e937ba0 (rcu_callback){....}-{0:0}, at: rcu_lock_acquire include/linux/rcupdate.h:337 [inline]\n  #0: ffffffff8e937ba0 (rcu_callback){....}-{0:0}, at: rcu_do_batch kernel/rcu/tree.c:2561 [inline]\n  #0: ffffffff8e937ba0 (rcu_callback){....}-{0:0}, at: rcu_core+0xa37/0x17a0 kernel/rcu/tree.c:2823\nPreemption disabled at:\n [\u003cffffffff8161c8c8\u003e] softirq_handle_begin kernel/softirq.c:402 [inline]\n [\u003cffffffff8161c8c8\u003e] handle_softirqs+0x128/0x9b0 kernel/softirq.c:537\nCPU: 1 UID: 0 PID: 24 Comm: ksoftirqd/1 Not tainted 6.13.0-rc3-syzkaller-00174-ga024e377efed #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024\nCall Trace:\n \u003cTASK\u003e\n  __dump_stack lib/dump_stack.c:94 [inline]\n  dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120\n  __might_resched+0x5d4/0x780 kernel/sched/core.c:8758\n  __mutex_lock_common kernel/locking/mutex.c:562 [inline]\n  __mutex_lock+0x131/0xee0 kernel/locking/mutex.c:735\n  crypto_put_default_null_skcipher+0x18/0x70 crypto/crypto_null.c:179\n  aead_release+0x3d/0x50 crypto/algif_aead.c:489\n  alg_do_release crypto/af_alg.c:118 [inline]\n  alg_sock_destruct+0x86/0xc0 crypto/af_alg.c:502\n  __sk_destruct+0x58/0x5f0 net/core/sock.c:2260\n  rcu_do_batch kernel/rcu/tree.c:2567 [inline]\n  rcu_core+0xaaa/0x17a0 kernel/rcu/tree.c:2823\n  handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561\n  run_ksoftirqd+0xca/0x130 kernel/softirq.c:950\n  smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164\n  kthread+0x2f0/0x390 kernel/kthread.c:389\n  ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147\n  ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244\n \u003c/TASK\u003e","modified":"2026-04-16T04:33:07.394369998Z","published":"2025-01-15T13:05:59.264Z","related":["SUSE-SU-2025:0289-1","SUSE-SU-2025:0428-1","SUSE-SU-2025:0499-1","SUSE-SU-2025:0557-1","SUSE-SU-2025:0565-1","SUSE-SU-2025:20165-1","SUSE-SU-2025:20166-1","SUSE-SU-2025:20248-1","SUSE-SU-2025:20249-1","USN-7379-2","USN-7380-1"],"database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/57xxx/CVE-2024-57903.json"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/3257813a3ae7462ac5cde04e120806f0c0776850"},{"type":"WEB","url":"https://git.kernel.org/stable/c/579cfa595af1e00ccc9c3a849a4add6bba8b4bad"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5b0af621c3f6ef9261cf6067812f2fd9943acb4b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ad2ad4cd11af9d63187cd074314b71b7cf8a2a59"},{"type":"WEB","url":"https://git.kernel.org/stable/c/ad91a2dacbf8c26a446658cdd55e8324dfeff1e7"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/57xxx/CVE-2024-57903.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-57903"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"8c7138b33e5c690c308b2a7085f6313fdcb3f616"},{"fixed":"579cfa595af1e00ccc9c3a849a4add6bba8b4bad"},{"fixed":"ad2ad4cd11af9d63187cd074314b71b7cf8a2a59"},{"fixed":"ad91a2dacbf8c26a446658cdd55e8324dfeff1e7"},{"fixed":"3257813a3ae7462ac5cde04e120806f0c0776850"},{"fixed":"5b0af621c3f6ef9261cf6067812f2fd9943acb4b"}]},{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"0"},{"last_affected":"62241d6d9e497ad16372b74d2afa3340128e8e57"},{"last_affected":"1e24f532c736b3f99f3fe7c4be66414c40df5f02"},{"last_affected":"d5b1db1c7ce4198bbbd51160350bdd446c8ed2ba"},{"last_affected":"50b26ba8938f1741523ca733aa9a548a12b6edd6"},{"last_affected":"7e2777fd4816cdf6bff5de9e5221514f36dddfbf"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-57903.json"}}],"schema_version":"1.7.5"}