漏洞标题
在"net/smc: fix wrong list_del在smc_lgr_cleanup_early中"这一段内容的翻译中，我们可以将其理解为对一个错误的"list_del"函数在"smc_lgr_cleanup_early"这个上下文中的修复。具体来说，这段内容可能是在描述对网络相关代码中一个具体的错误进行了修正，这个错误涉及到在早期清理逻辑日志（Log）时，使用了错误的方式或函数来删除元素（list_del），并且这个修正被应用在了特定的代码分支或模块（如"smc"）中。由于具体的代码上下文和环境信息未提供，这个翻译基于对代码命名和常见编程术语的理解进行的。在实际应用中，可能需要根据具体的代码库和编程环境进行适当的调整和解释。
漏洞描述信息
N/A
CVSS信息
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
漏洞类别
跨界内存写
漏洞标题
net/smc: fix wrong list_del in smc_lgr_cleanup_early
漏洞描述信息
In the Linux kernel, the following vulnerability has been resolved:
net/smc: fix wrong list_del in smc_lgr_cleanup_early
smc_lgr_cleanup_early() meant to delete the link
group from the link group list, but it deleted
the list head by mistake.
This may cause memory corruption since we didn't
remove the real link group from the list and later
memseted the link group structure.
We got a list corruption panic when testing:
[ 231.277259] list_del corruption. prev->next should be ffff8881398a8000, but was 0000000000000000
[ 231.278222] ------------[ cut here ]------------
[ 231.278726] kernel BUG at lib/list_debug.c:53!
[ 231.279326] invalid opcode: 0000 [#1] SMP NOPTI
[ 231.279803] CPU: 0 PID: 5 Comm: kworker/0:0 Not tainted 5.10.46+ #435
[ 231.280466] Hardware name: Alibaba Cloud ECS, BIOS 8c24b4c 04/01/2014
[ 231.281248] Workqueue: events smc_link_down_work
[ 231.281732] RIP: 0010:__list_del_entry_valid+0x70/0x90
[ 231.282258] Code: 4c 60 82 e8 7d cc 6a 00 0f 0b 48 89 fe 48 c7 c7 88 4c
60 82 e8 6c cc 6a 00 0f 0b 48 89 fe 48 c7 c7 c0 4c 60 82 e8 5b cc 6a 00 <0f>
0b 48 89 fe 48 c7 c7 00 4d 60 82 e8 4a cc 6a 00 0f 0b cc cc cc
[ 231.284146] RSP: 0018:ffffc90000033d58 EFLAGS: 00010292
[ 231.284685] RAX: 0000000000000054 RBX: ffff8881398a8000 RCX: 0000000000000000
[ 231.285415] RDX: 0000000000000001 RSI: ffff88813bc18040 RDI: ffff88813bc18040
[ 231.286141] RBP: ffffffff8305ad40 R08: 0000000000000003 R09: 0000000000000001
[ 231.286873] R10: ffffffff82803da0 R11: ffffc90000033b90 R12: 0000000000000001
[ 231.287606] R13: 0000000000000000 R14: ffff8881398a8000 R15: 0000000000000003
[ 231.288337] FS: 0000000000000000(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000
[ 231.289160] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 231.289754] CR2: 0000000000e72058 CR3: 000000010fa96006 CR4: 00000000003706f0
[ 231.290485] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 231.291211] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 231.291940] Call Trace:
[ 231.292211] smc_lgr_terminate_sched+0x53/0xa0
[ 231.292677] smc_switch_conns+0x75/0x6b0
[ 231.293085] ? update_load_avg+0x1a6/0x590
[ 231.293517] ? ttwu_do_wakeup+0x17/0x150
[ 231.293907] ? update_load_avg+0x1a6/0x590
[ 231.294317] ? newidle_balance+0xca/0x3d0
[ 231.294716] smcr_link_down+0x50/0x1a0
[ 231.295090] ? __wake_up_common_lock+0x77/0x90
[ 231.295534] smc_link_down_work+0x46/0x60
[ 231.295933] process_one_work+0x18b/0x350
CVSS信息
N/A
漏洞类别
N/A
漏洞标题
Linux kernel 安全漏洞
漏洞描述信息
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 net/smc 模块 smc_lgr_cleanup_early 中错误的 list_del。
CVSS信息
N/A
漏洞类别
其他