cbcvebase.
CVE-2024-47684
published 2024-10-21

CVE-2024-47684: In the Linux kernel, the following vulnerability has been resolved: tcp: check skb is non-NULL in tcp_rto_delta_us() We have some machines running stock Ubuntu…

PriorityP422medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.28%
20.0th percentile
In the Linux kernel, the following vulnerability has been resolved: tcp: check skb is non-NULL in tcp_rto_delta_us() We have some machines running stock Ubuntu 20.04.6 which is their 5.4.0-174-generic kernel that are running ceph and recently hit a null ptr dereference in tcp_rearm_rto(). Initially hitting it from the TLP path, but then later we also saw it getting hit from the RACK case as well. Here are examples of the oops messages we saw in each of those cases: Jul 26 15:05:02 rx [11061395.780353] BUG: kernel NULL pointer dereference, address: 0000000000000020 Jul 26 15:05:02 rx [11061395.787572] #PF: supervisor read access in kernel mode Jul 26 15:05:02 rx [11061395.792971] #PF: error_code(0x0000) - not-present page Jul 26 15:05:02 rx [11061395.798362] PGD 0 P4D 0 Jul 26 15:05:02 rx [11061395.801164] Oops: 0000 [#1] SMP NOPTI Jul 26 15:05:02 rx [11061395.805091] CPU: 0 PID: 9180 Comm: msgr-worker-1 Tainted: G W 5.4.0-174-generic #193-Ubuntu Jul 26 15:05:02 rx [11061395.814996] Hardware name: Supermicro SMC 2x26 os-gen8 64C NVME-Y 256G/H12SSW-NTR, BIOS 2.5.V1.2U.NVMe.UEFI 05/09/2023 Jul 26 15:05:02 rx [11061395.825952] RIP: 0010:tcp_rearm_rto+0xe4/0x160 Jul 26 15:05:02 rx [11061395.830656] Code: 87 ca 04 00 00 00 5b 41 5c 41 5d 5d c3 c3 49 8b bc 24 40 06 00 00 eb 8d 48 bb cf f7 53 e3 a5 9b c4 20 4c 89 ef e8 0c fe 0e 00 8b 78 20 48 c1 ef 03 48 89 f8 41 8b bc 24 80 04 00 00 48 f7 e3 Jul 26 15:05:02 rx [11061395.849665] RSP: 0018:ffffb75d40003e08 EFLAGS: 00010246 Jul 26 15:05:02 rx [11061395.855149] RAX: 0000000000000000 RBX: 20c49ba5e353f7cf RCX: 0000000000000000 Jul 26 15:05:02 rx [11061395.862542] RDX: 0000000062177c30 RSI: 000000000000231c RDI: ffff9874ad283a60 Jul 26 15:05:02 rx [11061395.869933] RBP: ffffb75d40003e20 R08: 0000000000000000 R09: ffff987605e20aa8 Jul 26 15:05:02 rx [11061395.877318] R10: ffffb75d40003f00 R11: ffffb75d4460f740 R12: ffff9874ad283900 Jul 26 15:05:02 rx [11061395.884710] R13: ffff9874ad283a60 R14: ffff9874ad283980 R15: ffff9874ad

Affected

37 ranges· showing 25
VendorProductVersion rangeFixed in
debianlinux< linux 6.1.115-1 (bookworm)linux 6.1.115-1 (bookworm)
debianlinux-6.1< linux 6.1.115-1 (bookworm)linux 6.1.115-1 (bookworm)
linuxlinux
linuxlinux
linuxlinux>= 3.10.108 < 3.113.11
linuxlinux>= e1a10ef7fa876f8510aaec36ea5c0cf34baba410 < ad4f0a14d6856e68f023fc4e5017cfd881a3dfbcad4f0a14d6856e68f023fc4e5017cfd881a3dfbc
linuxlinux>= e1a10ef7fa876f8510aaec36ea5c0cf34baba410 < 16e0387d87fc858e34449fdf2b14ed5837f761db16e0387d87fc858e34449fdf2b14ed5837f761db
linuxlinux>= e1a10ef7fa876f8510aaec36ea5c0cf34baba410 < ec31cf42fc4e35bb1248ce6eb1de6de9f851ac86ec31cf42fc4e35bb1248ce6eb1de6de9f851ac86
linuxlinux>= e1a10ef7fa876f8510aaec36ea5c0cf34baba410 < 5c4c03288a4aea705e36aa44119c13d7ee4dce995c4c03288a4aea705e36aa44119c13d7ee4dce99
linuxlinux>= e1a10ef7fa876f8510aaec36ea5c0cf34baba410 < 96c4983eab2a5da235f7fff90beaf17b008ba02996c4983eab2a5da235f7fff90beaf17b008ba029
linuxlinux>= e1a10ef7fa876f8510aaec36ea5c0cf34baba410 < 570f7d8c9bf14f041152ba8353d4330ef7575915570f7d8c9bf14f041152ba8353d4330ef7575915
linuxlinux>= e1a10ef7fa876f8510aaec36ea5c0cf34baba410 < 81d18c152e3f82bacadf83bc0a471b2363b9cc1881d18c152e3f82bacadf83bc0a471b2363b9cc18
linuxlinux>= e1a10ef7fa876f8510aaec36ea5c0cf34baba410 < 09aea49fbc7e755a915c405644f347137cdb62b009aea49fbc7e755a915c405644f347137cdb62b0
linuxlinux>= e1a10ef7fa876f8510aaec36ea5c0cf34baba410 < c8770db2d54437a5f49417ae7b46f7de23d14db6c8770db2d54437a5f49417ae7b46f7de23d14db6
linuxlinux_kernel
linuxlinux_kernel>= 0 < 5.10.234-15.10.234-1
linuxlinux_kernel>= 0 < 6.1.115-16.1.115-1
linuxlinux_kernel>= 0 < 6.11.2-16.11.2-1
linuxlinux_kernel>= 0 < 6.11.2-16.11.2-1
linuxlinux_kernel>= 0 < 5.4.0-208.2285.4.0-208.228
linuxlinux_kernel>= 0 < 5.15.0-127.1375.15.0-127.137
linuxlinux_kernel>= 0 < 6.8.0-54.566.8.0-54.56
linuxlinux_kernel>= 0 < 6.11.0-18.186.11.0-18.18
linuxlinux_kernel>= 4.13 < 5.10.2275.10.227
linuxlinux_kernel>= 5.11 < 5.15.1685.15.168

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.5MEDIUM
vendor_msrc5.5MEDIUM
vendor_redhat5.5MEDIUM
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