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THREATINT
PUBLISHED

CVE-2024-27013

tun: limit printing rate when illegal packet received by tun dev

Reserved:2024-02-19
Published:2024-05-01
Updated:2024-05-13

Description

In the Linux kernel, the following vulnerability has been resolved: tun: limit printing rate when illegal packet received by tun dev vhost_worker will call tun call backs to receive packets. If too many illegal packets arrives, tun_do_read will keep dumping packet contents. When console is enabled, it will costs much more cpu time to dump packet and soft lockup will be detected. net_ratelimit mechanism can be used to limit the dumping rate. PID: 33036 TASK: ffff949da6f20000 CPU: 23 COMMAND: "vhost-32980" #0 [fffffe00003fce50] crash_nmi_callback at ffffffff89249253 #1 [fffffe00003fce58] nmi_handle at ffffffff89225fa3 #2 [fffffe00003fceb0] default_do_nmi at ffffffff8922642e #3 [fffffe00003fced0] do_nmi at ffffffff8922660d #4 [fffffe00003fcef0] end_repeat_nmi at ffffffff89c01663 [exception RIP: io_serial_in+20] RIP: ffffffff89792594 RSP: ffffa655314979e8 RFLAGS: 00000002 RAX: ffffffff89792500 RBX: ffffffff8af428a0 RCX: 0000000000000000 RDX: 00000000000003fd RSI: 0000000000000005 RDI: ffffffff8af428a0 RBP: 0000000000002710 R8: 0000000000000004 R9: 000000000000000f R10: 0000000000000000 R11: ffffffff8acbf64f R12: 0000000000000020 R13: ffffffff8acbf698 R14: 0000000000000058 R15: 0000000000000000 ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 #5 [ffffa655314979e8] io_serial_in at ffffffff89792594 #6 [ffffa655314979e8] wait_for_xmitr at ffffffff89793470 #7 [ffffa65531497a08] serial8250_console_putchar at ffffffff897934f6 #8 [ffffa65531497a20] uart_console_write at ffffffff8978b605 #9 [ffffa65531497a48] serial8250_console_write at ffffffff89796558 #10 [ffffa65531497ac8] console_unlock at ffffffff89316124 #11 [ffffa65531497b10] vprintk_emit at ffffffff89317c07 #12 [ffffa65531497b68] printk at ffffffff89318306 #13 [ffffa65531497bc8] print_hex_dump at ffffffff89650765 #14 [ffffa65531497ca8] tun_do_read at ffffffffc0b06c27 [tun] #15 [ffffa65531497d38] tun_recvmsg at ffffffffc0b06e34 [tun] #16 [ffffa65531497d68] handle_rx at ffffffffc0c5d682 [vhost_net] #17 [ffffa65531497ed0] vhost_worker at ffffffffc0c644dc [vhost] #18 [ffffa65531497f10] kthread at ffffffff892d2e72 #19 [ffffa65531497f50] ret_from_fork at ffffffff89c0022f

Product status

Default status
unaffected

ef3db4a59542 before 68459b8e3ee5
affected

ef3db4a59542 before 4b0dcae5c479
affected

ef3db4a59542 before 14cdb43dbc82
affected

ef3db4a59542 before a50dbeca28ac
affected

ef3db4a59542 before 62e27ef18eb4
affected

ef3db4a59542 before 40f4ced305c6
affected

ef3db4a59542 before 52854101180b
affected

ef3db4a59542 before f8bbc07ac535
affected

Default status
affected

2.6.35
affected

Any version before 2.6.35
unaffected

4.19.313
unaffected

5.4.275
unaffected

5.10.216
unaffected

5.15.157
unaffected

6.1.88
unaffected

6.6.29
unaffected

6.8.8
unaffected

6.9
unaffected

References

https://git.kernel.org/stable/c/68459b8e3ee554ce71878af9eb69659b9462c588

https://git.kernel.org/stable/c/4b0dcae5c4797bf31c63011ed62917210d3fdac3

https://git.kernel.org/stable/c/14cdb43dbc827e18ac7d5b30c5b4c676219f1421

https://git.kernel.org/stable/c/a50dbeca28acf7051dfa92786b85f704c75db6eb

https://git.kernel.org/stable/c/62e27ef18eb4f0d33bbae8e9ef56b99696a74713

https://git.kernel.org/stable/c/40f4ced305c6c47487d3cd8da54676e2acc1a6ad

https://git.kernel.org/stable/c/52854101180beccdb9dc2077a3bea31b6ad48dfa

https://git.kernel.org/stable/c/f8bbc07ac535593139c875ffa19af924b1084540

cve.org CVE-2024-27013

nvd.nist.gov CVE-2024-27013

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