cbcvebase.
CVE-2024-47709
published 2024-10-21

CVE-2024-47709: In the Linux kernel, the following vulnerability has been resolved: can: bcm: Clear bo->bcm_proc_read after remove_proc_entry(). syzbot reported a warning in…

PriorityP421medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.25%
16.3th percentile
In the Linux kernel, the following vulnerability has been resolved: can: bcm: Clear bo->bcm_proc_read after remove_proc_entry(). syzbot reported a warning in bcm_release(). [0] The blamed change fixed another warning that is triggered when connect() is issued again for a socket whose connect()ed device has been unregistered. However, if the socket is just close()d without the 2nd connect(), the remaining bo->bcm_proc_read triggers unnecessary remove_proc_entry() in bcm_release(). Let's clear bo->bcm_proc_read after remove_proc_entry() in bcm_notify(). [0] name '4986' WARNING: CPU: 0 PID: 5234 at fs/proc/generic.c:711 remove_proc_entry+0x2e7/0x5d0 fs/proc/generic.c:711 Modules linked in: CPU: 0 UID: 0 PID: 5234 Comm: syz-executor606 Not tainted 6.11.0-rc5-syzkaller-00178-g5517ae241919 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:remove_proc_entry+0x2e7/0x5d0 fs/proc/generic.c:711 Code: ff eb 05 e8 cb 1e 5e ff 48 8b 5c 24 10 48 c7 c7 e0 f7 aa 8e e8 2a 38 8e 09 90 48 c7 c7 60 3a 1b 8c 48 89 de e8 da 42 20 ff 90 0b 90 90 48 8b 44 24 18 48 c7 44 24 40 0e 36 e0 45 49 c7 04 07 RSP: 0018:ffffc9000345fa20 EFLAGS: 00010246 RAX: 2a2d0aee2eb64600 RBX: ffff888032f1f548 RCX: ffff888029431e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000345fb08 R08: ffffffff8155b2f2 R09: 1ffff1101710519a R10: dffffc0000000000 R11: ffffed101710519b R12: ffff888011d38640 R13: 0000000000000004 R14: 0000000000000000 R15: dffffc0000000000 FS: 0000000000000000(0000) GS:ffff8880b8800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcfb52722f0 CR3: 000000000e734000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: bcm_release+0x250/0x880 net/can/bcm.c:1578 __sock_release net/socket.c:659 [inline] sock_close+0xbc/0x240 net/socket.c:1421 __fput+0x24a/0x

Affected

39 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>= 10bfacbd5e8d821011d857bee73310457c9c989a < 9550baada4c8ef8cebefccc746384842820b4dff9550baada4c8ef8cebefccc746384842820b4dff
linuxlinux>= 33ed4ba73caae39f34ab874ba79138badc2c65dd < a833da8eec20b51af39643faa7067b25c8b20f3ea833da8eec20b51af39643faa7067b25c8b20f3e
linuxlinux>= 3b39dc2901aa7a679a5ca981a3de9f8d5658afe8 < 7a145d6ec2124bdb94bd6fc436b342ff6ddf2b707a145d6ec2124bdb94bd6fc436b342ff6ddf2b70
linuxlinux>= 4.19.322 < 4.19.3234.19.323
linuxlinux>= 4377b79323df62eb5d310354f19b4d130ff58d50 < c3d941cc734e0c8dc486c062926d5249070af5e4c3d941cc734e0c8dc486c062926d5249070af5e4
linuxlinux>= 5.10.226 < 5.10.2275.10.227
linuxlinux>= 5.15.167 < 5.15.1685.15.168
linuxlinux>= 5.4.284 < 5.4.2855.4.285
linuxlinux>= 5c680022c4e28ba18ea500f3e29f0428271afa92 < f5059fae5ed518fc56494ce5bdd4f5360de4b3bcf5059fae5ed518fc56494ce5bdd4f5360de4b3bc
linuxlinux>= 6.1.110 < 6.1.1136.1.113
linuxlinux>= 6.10.10 < 6.10.136.10.13
linuxlinux>= 6.6.51 < 6.6.546.6.54
linuxlinux>= 76fe372ccb81b0c89b6cd2fec26e2f38c958be85 < b02ed2f01240b226570b4a19b5041d61f5125784b02ed2f01240b226570b4a19b5041d61f5125784
linuxlinux>= 76fe372ccb81b0c89b6cd2fec26e2f38c958be85 < 94b0818fa63555a65f6ba107080659ea6bcca63e94b0818fa63555a65f6ba107080659ea6bcca63e
linuxlinux>= abb0a615569ec008e8a93d9f3ab2d5b418ea94d4 < 770b463264426cc3c167b1d44efa85f6a526ce5b770b463264426cc3c167b1d44efa85f6a526ce5b
linuxlinux>= aec92dbebdbec7567d9f56d7c9296a572b8fd849 < 5cc00913c1fdcab861c4e65fa20d1f1e1bbbf9775cc00913c1fdcab861c4e65fa20d1f1e1bbbf977
linuxlinux_kernel
linuxlinux_kernel
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

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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